[{"author":[{"full_name":"George, B. M.","first_name":"B. M.","last_name":"George"},{"last_name":"Behrends","first_name":"J.","full_name":"Behrends, J."},{"last_name":"Schnegg","first_name":"A.","full_name":"Schnegg, A."},{"first_name":"T. F.","full_name":"Schulze, T. F.","last_name":"Schulze"},{"first_name":"M.","full_name":"Fehr, M.","last_name":"Fehr"},{"last_name":"Korte","first_name":"L.","full_name":"Korte, L."},{"full_name":"Rech, B.","first_name":"B.","last_name":"Rech"},{"last_name":"Lips","first_name":"K.","full_name":"Lips, K."},{"first_name":"M.","full_name":"Rohrmüller, M.","last_name":"Rohrmüller"},{"first_name":"E.","full_name":"Rauls, E.","last_name":"Rauls"},{"id":"468","last_name":"Schmidt","first_name":"Wolf Gero","full_name":"Schmidt, Wolf Gero","orcid":"0000-0002-2717-5076"},{"orcid":"0000-0002-4476-223X","first_name":"Uwe","full_name":"Gerstmann, Uwe","id":"171","last_name":"Gerstmann"}],"title":"Atomic Structure of Interface States in Silicon Heterojunction Solar Cells","intvolume":"       110","doi":"10.1103/physrevlett.110.136803","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"user_id":"16199","publication_status":"published","citation":{"ieee":"B. M. George <i>et al.</i>, “Atomic Structure of Interface States in Silicon Heterojunction Solar Cells,” <i>Physical Review Letters</i>, vol. 110, no. 13, 2013, doi: <a href=\"https://doi.org/10.1103/physrevlett.110.136803\">10.1103/physrevlett.110.136803</a>.","chicago":"George, B. M., J. Behrends, A. Schnegg, T. F. Schulze, M. Fehr, L. Korte, B. Rech, et al. “Atomic Structure of Interface States in Silicon Heterojunction Solar Cells.” <i>Physical Review Letters</i> 110, no. 13 (2013). <a href=\"https://doi.org/10.1103/physrevlett.110.136803\">https://doi.org/10.1103/physrevlett.110.136803</a>.","apa":"George, B. M., Behrends, J., Schnegg, A., Schulze, T. F., Fehr, M., Korte, L., Rech, B., Lips, K., Rohrmüller, M., Rauls, E., Schmidt, W. G., &#38; Gerstmann, U. (2013). Atomic Structure of Interface States in Silicon Heterojunction Solar Cells. <i>Physical Review Letters</i>, <i>110</i>(13). <a href=\"https://doi.org/10.1103/physrevlett.110.136803\">https://doi.org/10.1103/physrevlett.110.136803</a>","ama":"George BM, Behrends J, Schnegg A, et al. Atomic Structure of Interface States in Silicon Heterojunction Solar Cells. <i>Physical Review Letters</i>. 2013;110(13). doi:<a href=\"https://doi.org/10.1103/physrevlett.110.136803\">10.1103/physrevlett.110.136803</a>","short":"B.M. George, J. Behrends, A. Schnegg, T.F. Schulze, M. Fehr, L. Korte, B. Rech, K. Lips, M. Rohrmüller, E. Rauls, W.G. Schmidt, U. Gerstmann, Physical Review Letters 110 (2013).","bibtex":"@article{George_Behrends_Schnegg_Schulze_Fehr_Korte_Rech_Lips_Rohrmüller_Rauls_et al._2013, title={Atomic Structure of Interface States in Silicon Heterojunction Solar Cells}, volume={110}, DOI={<a href=\"https://doi.org/10.1103/physrevlett.110.136803\">10.1103/physrevlett.110.136803</a>}, number={13}, journal={Physical Review Letters}, author={George, B. M. and Behrends, J. and Schnegg, A. and Schulze, T. F. and Fehr, M. and Korte, L. and Rech, B. and Lips, K. and Rohrmüller, M. and Rauls, E. and et al.}, year={2013} }","mla":"George, B. M., et al. “Atomic Structure of Interface States in Silicon Heterojunction Solar Cells.” <i>Physical Review Letters</i>, vol. 110, no. 13, 2013, doi:<a href=\"https://doi.org/10.1103/physrevlett.110.136803\">10.1103/physrevlett.110.136803</a>."},"department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"790"},{"_id":"35"},{"_id":"230"},{"_id":"27"}],"publication":"Physical Review Letters","date_created":"2019-09-30T14:18:37Z","status":"public","year":"2013","type":"journal_article","publication_identifier":{"issn":["0031-9007","1079-7114"]},"language":[{"iso":"eng"}],"volume":110,"_id":"13528","date_updated":"2025-12-05T10:49:37Z","issue":"13"},{"user_id":"16199","publication_status":"published","citation":{"bibtex":"@article{Rohrmüller_Herres-Pawlis_Witte_Schmidt_2013, title={Bis-μ-oxo and μ-η2:η2-peroxo dicopper complexes studied within (time-dependent) density-functional and many-body perturbation theory}, volume={34}, DOI={<a href=\"https://doi.org/10.1002/jcc.23230\">10.1002/jcc.23230</a>}, journal={Journal of Computational Chemistry}, author={Rohrmüller, M. and Herres-Pawlis, S. and Witte, M. and Schmidt, Wolf Gero}, year={2013}, pages={1035–1045} }","mla":"Rohrmüller, M., et al. “Bis-μ-Oxo and μ-Η2:Η2-Peroxo Dicopper Complexes Studied within (Time-Dependent) Density-Functional and Many-Body Perturbation Theory.” <i>Journal of Computational Chemistry</i>, vol. 34, 2013, pp. 1035–45, doi:<a href=\"https://doi.org/10.1002/jcc.23230\">10.1002/jcc.23230</a>.","short":"M. Rohrmüller, S. Herres-Pawlis, M. Witte, W.G. Schmidt, Journal of Computational Chemistry 34 (2013) 1035–1045.","ama":"Rohrmüller M, Herres-Pawlis S, Witte M, Schmidt WG. Bis-μ-oxo and μ-η2:η2-peroxo dicopper complexes studied within (time-dependent) density-functional and many-body perturbation theory. <i>Journal of Computational Chemistry</i>. 2013;34:1035-1045. doi:<a href=\"https://doi.org/10.1002/jcc.23230\">10.1002/jcc.23230</a>","apa":"Rohrmüller, M., Herres-Pawlis, S., Witte, M., &#38; Schmidt, W. G. (2013). Bis-μ-oxo and μ-η2:η2-peroxo dicopper complexes studied within (time-dependent) density-functional and many-body perturbation theory. <i>Journal of Computational Chemistry</i>, <i>34</i>, 1035–1045. <a href=\"https://doi.org/10.1002/jcc.23230\">https://doi.org/10.1002/jcc.23230</a>","ieee":"M. Rohrmüller, S. Herres-Pawlis, M. Witte, and W. G. Schmidt, “Bis-μ-oxo and μ-η2:η2-peroxo dicopper complexes studied within (time-dependent) density-functional and many-body perturbation theory,” <i>Journal of Computational Chemistry</i>, vol. 34, pp. 1035–1045, 2013, doi: <a href=\"https://doi.org/10.1002/jcc.23230\">10.1002/jcc.23230</a>.","chicago":"Rohrmüller, M., S. Herres-Pawlis, M. Witte, and Wolf Gero Schmidt. “Bis-μ-Oxo and μ-Η2:Η2-Peroxo Dicopper Complexes Studied within (Time-Dependent) Density-Functional and Many-Body Perturbation Theory.” <i>Journal of Computational Chemistry</i> 34 (2013): 1035–45. <a href=\"https://doi.org/10.1002/jcc.23230\">https://doi.org/10.1002/jcc.23230</a>."},"department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"2"},{"_id":"35"},{"_id":"230"},{"_id":"27"}],"author":[{"last_name":"Rohrmüller","full_name":"Rohrmüller, M.","first_name":"M."},{"full_name":"Herres-Pawlis, S.","first_name":"S.","last_name":"Herres-Pawlis"},{"full_name":"Witte, M.","first_name":"M.","last_name":"Witte"},{"orcid":"0000-0002-2717-5076","last_name":"Schmidt","id":"468","full_name":"Schmidt, Wolf Gero","first_name":"Wolf Gero"}],"title":"Bis-μ-oxo and μ-η2:η2-peroxo dicopper complexes studied within (time-dependent) density-functional and many-body perturbation theory","doi":"10.1002/jcc.23230","intvolume":"        34","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"volume":34,"page":"1035-1045","_id":"13527","date_updated":"2025-12-05T10:50:08Z","publication":"Journal of Computational Chemistry","date_created":"2019-09-30T14:17:17Z","status":"public","type":"journal_article","publication_identifier":{"issn":["0192-8651"]},"year":"2013","language":[{"iso":"eng"}]},{"external_id":{"isi":["000319391000002"]},"oa":"1","user_id":"16199","project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"doi":"10.1103/PhysRevB.87.195208","abstract":[{"lang":"eng","text":"The frequency-dependent dielectric function and the second-order polarizability tensor of ferroelectric LiNbO3 are calculated from first principles. The calculations are based on the electronic structure obtained from density-functional theory. The subsequent application of the GW approximation to account for quasiparticle effects and the solution of the Bethe-Salpeter equation for the stoichiometric material yield a dielectric function that slightly overestimates the absorption onset and the oscillator strength in comparison with experimental measurements. Calculations at the level of the independent-particle approximation indicate that these deficiencies are, at least, partially related to the neglect of intrinsic defects typical for the congruent material. The second-order polarizability calculated within the independent-particle approximation predicts strong nonlinear coefficients for photon energies above 1.5 eV. The comparison with measured data suggests that the inclusion of self-energy effects in the nonlinear optical response leads to a better agreement with experiments. The intrinsic defects of congruent samples reduce the optical nonlinearities, in particular, for the 21 and 31 tensor components, further improving the agreement between experiments and theory."}],"has_accepted_license":"1","title":"Optical response of stoichiometric and congruent lithium niobate from first-principles calculations","file":[{"date_updated":"2020-08-30T14:53:40Z","relation":"main_file","file_name":"PhysRevB.87.195208.pdf","file_id":"18478","content_type":"application/pdf","date_created":"2020-08-27T22:06:46Z","description":"© 2013 American Physical Society","creator":"schindlm","file_size":791961,"access_level":"open_access","title":"Optical response of stoichiometric and congruent lithium niobate from first-principles calculations"}],"article_number":"195208","issue":"19","volume":87,"type":"journal_article","ddc":["530"],"quality_controlled":"1","publication":"Physical Review B","department":[{"_id":"295"},{"_id":"296"},{"_id":"15"},{"_id":"35"},{"_id":"230"},{"_id":"27"}],"citation":{"mla":"Riefer, Arthur, et al. “Optical Response of Stoichiometric and Congruent Lithium Niobate from First-Principles Calculations.” <i>Physical Review B</i>, vol. 87, no. 19, 195208, American Physical Society, 2013, doi:<a href=\"https://doi.org/10.1103/PhysRevB.87.195208\">10.1103/PhysRevB.87.195208</a>.","bibtex":"@article{Riefer_Sanna_Schindlmayr_Schmidt_2013, title={Optical response of stoichiometric and congruent lithium niobate from first-principles calculations}, volume={87}, DOI={<a href=\"https://doi.org/10.1103/PhysRevB.87.195208\">10.1103/PhysRevB.87.195208</a>}, number={19195208}, journal={Physical Review B}, publisher={American Physical Society}, author={Riefer, Arthur and Sanna, Simone and Schindlmayr, Arno and Schmidt, Wolf Gero}, year={2013} }","ama":"Riefer A, Sanna S, Schindlmayr A, Schmidt WG. Optical response of stoichiometric and congruent lithium niobate from first-principles calculations. <i>Physical Review B</i>. 2013;87(19). doi:<a href=\"https://doi.org/10.1103/PhysRevB.87.195208\">10.1103/PhysRevB.87.195208</a>","apa":"Riefer, A., Sanna, S., Schindlmayr, A., &#38; Schmidt, W. G. (2013). Optical response of stoichiometric and congruent lithium niobate from first-principles calculations. <i>Physical Review B</i>, <i>87</i>(19), Article 195208. <a href=\"https://doi.org/10.1103/PhysRevB.87.195208\">https://doi.org/10.1103/PhysRevB.87.195208</a>","chicago":"Riefer, Arthur, Simone Sanna, Arno Schindlmayr, and Wolf Gero Schmidt. “Optical Response of Stoichiometric and Congruent Lithium Niobate from First-Principles Calculations.” <i>Physical Review B</i> 87, no. 19 (2013). <a href=\"https://doi.org/10.1103/PhysRevB.87.195208\">https://doi.org/10.1103/PhysRevB.87.195208</a>.","short":"A. Riefer, S. Sanna, A. Schindlmayr, W.G. Schmidt, Physical Review B 87 (2013).","ieee":"A. Riefer, S. Sanna, A. Schindlmayr, and W. G. Schmidt, “Optical response of stoichiometric and congruent lithium niobate from first-principles calculations,” <i>Physical Review B</i>, vol. 87, no. 19, Art. no. 195208, 2013, doi: <a href=\"https://doi.org/10.1103/PhysRevB.87.195208\">10.1103/PhysRevB.87.195208</a>."},"publication_status":"published","intvolume":"        87","article_type":"original","author":[{"last_name":"Riefer","full_name":"Riefer, Arthur","first_name":"Arthur"},{"first_name":"Simone","full_name":"Sanna, Simone","last_name":"Sanna"},{"last_name":"Schindlmayr","id":"458","full_name":"Schindlmayr, Arno","first_name":"Arno","orcid":"0000-0002-4855-071X"},{"orcid":"0000-0002-2717-5076","full_name":"Schmidt, Wolf Gero","first_name":"Wolf Gero","last_name":"Schmidt","id":"468"}],"date_updated":"2025-12-05T10:51:45Z","file_date_updated":"2020-08-30T14:53:40Z","_id":"13525","isi":"1","language":[{"iso":"eng"}],"year":"2013","publication_identifier":{"issn":["1098-0121"],"eissn":["1550-235X"]},"status":"public","date_created":"2019-09-30T14:11:18Z","publisher":"American Physical Society"},{"page":"4282-4290","_id":"15867","date_updated":"2025-12-05T14:53:44Z","date_created":"2020-02-10T12:01:26Z","publication":"Journal of the American Chemical Society","status":"public","language":[{"iso":"eng"}],"publication_identifier":{"issn":["0002-7863","1520-5126"]},"year":"2013","type":"journal_article","publication_status":"published","user_id":"16199","citation":{"short":"R. Tautz, E. Da Como, C. Wiebeler, G. Soavi, I. Dumsch, N. Fröhlich, G. Grancini, S. Allard, U. Scherf, G. Cerullo, S. Schumacher, J. Feldmann, Journal of the American Chemical Society (2013) 4282–4290.","bibtex":"@article{Tautz_Da Como_Wiebeler_Soavi_Dumsch_Fröhlich_Grancini_Allard_Scherf_Cerullo_et al._2013, title={Charge Photogeneration in Donor–Acceptor Conjugated Materials: Influence of Excess Excitation Energy and Chain Length}, DOI={<a href=\"https://doi.org/10.1021/ja309252a\">10.1021/ja309252a</a>}, journal={Journal of the American Chemical Society}, author={Tautz, Raphael and Da Como, Enrico and Wiebeler, Christian and Soavi, Giancarlo and Dumsch, Ines and Fröhlich, Nils and Grancini, Giulia and Allard, Sybille and Scherf, Ullrich and Cerullo, Giulio and et al.}, year={2013}, pages={4282–4290} }","mla":"Tautz, Raphael, et al. “Charge Photogeneration in Donor–Acceptor Conjugated Materials: Influence of Excess Excitation Energy and Chain Length.” <i>Journal of the American Chemical Society</i>, 2013, pp. 4282–90, doi:<a href=\"https://doi.org/10.1021/ja309252a\">10.1021/ja309252a</a>.","ieee":"R. Tautz <i>et al.</i>, “Charge Photogeneration in Donor–Acceptor Conjugated Materials: Influence of Excess Excitation Energy and Chain Length,” <i>Journal of the American Chemical Society</i>, pp. 4282–4290, 2013, doi: <a href=\"https://doi.org/10.1021/ja309252a\">10.1021/ja309252a</a>.","chicago":"Tautz, Raphael, Enrico Da Como, Christian Wiebeler, Giancarlo Soavi, Ines Dumsch, Nils Fröhlich, Giulia Grancini, et al. “Charge Photogeneration in Donor–Acceptor Conjugated Materials: Influence of Excess Excitation Energy and Chain Length.” <i>Journal of the American Chemical Society</i>, 2013, 4282–90. <a href=\"https://doi.org/10.1021/ja309252a\">https://doi.org/10.1021/ja309252a</a>.","ama":"Tautz R, Da Como E, Wiebeler C, et al. Charge Photogeneration in Donor–Acceptor Conjugated Materials: Influence of Excess Excitation Energy and Chain Length. <i>Journal of the American Chemical Society</i>. Published online 2013:4282-4290. doi:<a href=\"https://doi.org/10.1021/ja309252a\">10.1021/ja309252a</a>","apa":"Tautz, R., Da Como, E., Wiebeler, C., Soavi, G., Dumsch, I., Fröhlich, N., Grancini, G., Allard, S., Scherf, U., Cerullo, G., Schumacher, S., &#38; Feldmann, J. (2013). Charge Photogeneration in Donor–Acceptor Conjugated Materials: Influence of Excess Excitation Energy and Chain Length. <i>Journal of the American Chemical Society</i>, 4282–4290. <a href=\"https://doi.org/10.1021/ja309252a\">https://doi.org/10.1021/ja309252a</a>"},"department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"35"},{"_id":"27"}],"author":[{"last_name":"Tautz","first_name":"Raphael","full_name":"Tautz, Raphael"},{"full_name":"Da Como, Enrico","first_name":"Enrico","last_name":"Da Como"},{"full_name":"Wiebeler, Christian","first_name":"Christian","last_name":"Wiebeler"},{"first_name":"Giancarlo","full_name":"Soavi, Giancarlo","last_name":"Soavi"},{"full_name":"Dumsch, Ines","first_name":"Ines","last_name":"Dumsch"},{"last_name":"Fröhlich","full_name":"Fröhlich, Nils","first_name":"Nils"},{"full_name":"Grancini, Giulia","first_name":"Giulia","last_name":"Grancini"},{"full_name":"Allard, Sybille","first_name":"Sybille","last_name":"Allard"},{"first_name":"Ullrich","full_name":"Scherf, Ullrich","last_name":"Scherf"},{"last_name":"Cerullo","first_name":"Giulio","full_name":"Cerullo, Giulio"},{"orcid":"0000-0003-4042-4951","id":"27271","last_name":"Schumacher","full_name":"Schumacher, Stefan","first_name":"Stefan"},{"first_name":"Jochen","full_name":"Feldmann, Jochen","last_name":"Feldmann"}],"title":"Charge Photogeneration in Donor–Acceptor Conjugated Materials: Influence of Excess Excitation Energy and Chain Length","doi":"10.1021/ja309252a","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}]},{"publication":"Scientific Reports","date_created":"2020-02-10T12:00:25Z","type":"journal_article","year":"2013","publication_identifier":{"issn":["2045-2322"]},"language":[{"iso":"eng"}],"status":"public","_id":"15866","date_updated":"2025-12-05T14:53:15Z","title":"Formation and control of Turing patterns in a coherent quantum fluid","author":[{"last_name":"Ardizzone","first_name":"Vincenzo","full_name":"Ardizzone, Vincenzo"},{"full_name":"Lewandowski, Przemyslaw","first_name":"Przemyslaw","last_name":"Lewandowski"},{"first_name":"M. H.","full_name":"Luk, M. H.","last_name":"Luk"},{"last_name":"Tse","full_name":"Tse, Y. C.","first_name":"Y. C."},{"first_name":"N. H.","full_name":"Kwong, N. H.","last_name":"Kwong"},{"last_name":"Lücke","full_name":"Lücke, Andreas","first_name":"Andreas"},{"first_name":"Marco","full_name":"Abbarchi, Marco","last_name":"Abbarchi"},{"first_name":"Emmanuel","full_name":"Baudin, Emmanuel","last_name":"Baudin"},{"first_name":"Elisabeth","full_name":"Galopin, Elisabeth","last_name":"Galopin"},{"full_name":"Bloch, Jacqueline","first_name":"Jacqueline","last_name":"Bloch"},{"first_name":"Aristide","full_name":"Lemaitre, Aristide","last_name":"Lemaitre"},{"full_name":"Leung, P. T.","first_name":"P. T.","last_name":"Leung"},{"full_name":"Roussignol, Philippe","first_name":"Philippe","last_name":"Roussignol"},{"first_name":"Rolf","full_name":"Binder, Rolf","last_name":"Binder"},{"last_name":"Tignon","first_name":"Jerome","full_name":"Tignon, Jerome"},{"id":"27271","last_name":"Schumacher","full_name":"Schumacher, Stefan","first_name":"Stefan","orcid":"0000-0003-4042-4951"}],"project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"doi":"10.1038/srep03016","citation":{"ieee":"V. Ardizzone <i>et al.</i>, “Formation and control of Turing patterns in a coherent quantum fluid,” <i>Scientific Reports</i>, 2013, doi: <a href=\"https://doi.org/10.1038/srep03016\">10.1038/srep03016</a>.","chicago":"Ardizzone, Vincenzo, Przemyslaw Lewandowski, M. H. Luk, Y. C. Tse, N. H. Kwong, Andreas Lücke, Marco Abbarchi, et al. “Formation and Control of Turing Patterns in a Coherent Quantum Fluid.” <i>Scientific Reports</i>, 2013. <a href=\"https://doi.org/10.1038/srep03016\">https://doi.org/10.1038/srep03016</a>.","short":"V. Ardizzone, P. Lewandowski, M.H. Luk, Y.C. Tse, N.H. Kwong, A. Lücke, M. Abbarchi, E. Baudin, E. Galopin, J. Bloch, A. Lemaitre, P.T. Leung, P. Roussignol, R. Binder, J. Tignon, S. Schumacher, Scientific Reports (2013).","apa":"Ardizzone, V., Lewandowski, P., Luk, M. H., Tse, Y. C., Kwong, N. H., Lücke, A., Abbarchi, M., Baudin, E., Galopin, E., Bloch, J., Lemaitre, A., Leung, P. T., Roussignol, P., Binder, R., Tignon, J., &#38; Schumacher, S. (2013). Formation and control of Turing patterns in a coherent quantum fluid. <i>Scientific Reports</i>. <a href=\"https://doi.org/10.1038/srep03016\">https://doi.org/10.1038/srep03016</a>","ama":"Ardizzone V, Lewandowski P, Luk MH, et al. Formation and control of Turing patterns in a coherent quantum fluid. <i>Scientific Reports</i>. Published online 2013. doi:<a href=\"https://doi.org/10.1038/srep03016\">10.1038/srep03016</a>","bibtex":"@article{Ardizzone_Lewandowski_Luk_Tse_Kwong_Lücke_Abbarchi_Baudin_Galopin_Bloch_et al._2013, title={Formation and control of Turing patterns in a coherent quantum fluid}, DOI={<a href=\"https://doi.org/10.1038/srep03016\">10.1038/srep03016</a>}, journal={Scientific Reports}, author={Ardizzone, Vincenzo and Lewandowski, Przemyslaw and Luk, M. H. and Tse, Y. C. and Kwong, N. H. and Lücke, Andreas and Abbarchi, Marco and Baudin, Emmanuel and Galopin, Elisabeth and Bloch, Jacqueline and et al.}, year={2013} }","mla":"Ardizzone, Vincenzo, et al. “Formation and Control of Turing Patterns in a Coherent Quantum Fluid.” <i>Scientific Reports</i>, 2013, doi:<a href=\"https://doi.org/10.1038/srep03016\">10.1038/srep03016</a>."},"user_id":"16199","publication_status":"published","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"35"},{"_id":"27"}]},{"project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"doi":"10.1103/physrevb.87.205307","title":"Transverse optical instability patterns in semiconductor microcavities: Polariton scattering and low-intensity all-optical switching","author":[{"first_name":"M. H.","full_name":"Luk, M. H.","last_name":"Luk"},{"last_name":"Tse","full_name":"Tse, Y. C.","first_name":"Y. C."},{"last_name":"Kwong","full_name":"Kwong, N. H.","first_name":"N. H."},{"last_name":"Leung","first_name":"P. T.","full_name":"Leung, P. T."},{"last_name":"Lewandowski","full_name":"Lewandowski, Przemyslaw","first_name":"Przemyslaw"},{"first_name":"R.","full_name":"Binder, R.","last_name":"Binder"},{"first_name":"Stefan","full_name":"Schumacher, Stefan","last_name":"Schumacher","id":"27271","orcid":"0000-0003-4042-4951"}],"department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"35"},{"_id":"230"},{"_id":"27"}],"citation":{"short":"M.H. Luk, Y.C. Tse, N.H. Kwong, P.T. Leung, P. Lewandowski, R. Binder, S. Schumacher, Physical Review B (2013).","chicago":"Luk, M. H., Y. C. Tse, N. H. Kwong, P. T. Leung, Przemyslaw Lewandowski, R. Binder, and Stefan Schumacher. “Transverse Optical Instability Patterns in Semiconductor Microcavities: Polariton Scattering and Low-Intensity All-Optical Switching.” <i>Physical Review B</i>, 2013. <a href=\"https://doi.org/10.1103/physrevb.87.205307\">https://doi.org/10.1103/physrevb.87.205307</a>.","ieee":"M. H. Luk <i>et al.</i>, “Transverse optical instability patterns in semiconductor microcavities: Polariton scattering and low-intensity all-optical switching,” <i>Physical Review B</i>, 2013, doi: <a href=\"https://doi.org/10.1103/physrevb.87.205307\">10.1103/physrevb.87.205307</a>.","mla":"Luk, M. H., et al. “Transverse Optical Instability Patterns in Semiconductor Microcavities: Polariton Scattering and Low-Intensity All-Optical Switching.” <i>Physical Review B</i>, 2013, doi:<a href=\"https://doi.org/10.1103/physrevb.87.205307\">10.1103/physrevb.87.205307</a>.","bibtex":"@article{Luk_Tse_Kwong_Leung_Lewandowski_Binder_Schumacher_2013, title={Transverse optical instability patterns in semiconductor microcavities: Polariton scattering and low-intensity all-optical switching}, DOI={<a href=\"https://doi.org/10.1103/physrevb.87.205307\">10.1103/physrevb.87.205307</a>}, journal={Physical Review B}, author={Luk, M. H. and Tse, Y. C. and Kwong, N. H. and Leung, P. T. and Lewandowski, Przemyslaw and Binder, R. and Schumacher, Stefan}, year={2013} }","ama":"Luk MH, Tse YC, Kwong NH, et al. Transverse optical instability patterns in semiconductor microcavities: Polariton scattering and low-intensity all-optical switching. <i>Physical Review B</i>. Published online 2013. doi:<a href=\"https://doi.org/10.1103/physrevb.87.205307\">10.1103/physrevb.87.205307</a>","apa":"Luk, M. H., Tse, Y. C., Kwong, N. H., Leung, P. T., Lewandowski, P., Binder, R., &#38; Schumacher, S. (2013). Transverse optical instability patterns in semiconductor microcavities: Polariton scattering and low-intensity all-optical switching. <i>Physical Review B</i>. <a href=\"https://doi.org/10.1103/physrevb.87.205307\">https://doi.org/10.1103/physrevb.87.205307</a>"},"user_id":"16199","publication_status":"published","year":"2013","publication_identifier":{"issn":["1098-0121","1550-235X"]},"type":"journal_article","language":[{"iso":"eng"}],"status":"public","publication":"Physical Review B","date_created":"2020-02-10T12:02:14Z","date_updated":"2025-12-05T14:54:10Z","_id":"15868"},{"project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"},{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"abstract":[{"lang":"eng","text":"We derive a transparent and easy-to-use analytic expression for the selection rules and the optical dipole matrix elements for carbon nanotubes of arbitrary chirality in the presence of axial magnetic fields using a single-orbital π-electron tight-binding model. From this, we calculate the linear absorption spectrum for arbitrary polarization directions of the incident light, providing insight into all optically allowed transition. We show that the transverse absorption peaks can be selectively excited with circularly polarized light and spectrally resolved in an axial magnetic field."}],"doi":"10.1103/physrevb.88.035429","title":"Selection rules and linear absorption spectra of carbon nanotubes in axial magnetic fields","user_id":"16199","type":"journal_article","publication":"Physical Review B","article_number":"035429","issue":"3","volume":88,"intvolume":"        88","author":[{"last_name":"Liu","first_name":"Hong","full_name":"Liu, Hong"},{"orcid":"0000-0003-4042-4951","first_name":"Stefan","full_name":"Schumacher, Stefan","id":"27271","last_name":"Schumacher"},{"last_name":"Meier","id":"344","full_name":"Meier, Torsten","first_name":"Torsten","orcid":"0000-0001-8864-2072"}],"department":[{"_id":"15"},{"_id":"170"},{"_id":"293"},{"_id":"297"},{"_id":"230"},{"_id":"35"},{"_id":"27"}],"citation":{"chicago":"Liu, Hong, Stefan Schumacher, and Torsten Meier. “Selection Rules and Linear Absorption Spectra of Carbon Nanotubes in Axial Magnetic Fields.” <i>Physical Review B</i> 88, no. 3 (2013). <a href=\"https://doi.org/10.1103/physrevb.88.035429\">https://doi.org/10.1103/physrevb.88.035429</a>.","ieee":"H. Liu, S. Schumacher, and T. Meier, “Selection rules and linear absorption spectra of carbon nanotubes in axial magnetic fields,” <i>Physical Review B</i>, vol. 88, no. 3, Art. no. 035429, 2013, doi: <a href=\"https://doi.org/10.1103/physrevb.88.035429\">10.1103/physrevb.88.035429</a>.","ama":"Liu H, Schumacher S, Meier T. Selection rules and linear absorption spectra of carbon nanotubes in axial magnetic fields. <i>Physical Review B</i>. 2013;88(3). doi:<a href=\"https://doi.org/10.1103/physrevb.88.035429\">10.1103/physrevb.88.035429</a>","apa":"Liu, H., Schumacher, S., &#38; Meier, T. (2013). Selection rules and linear absorption spectra of carbon nanotubes in axial magnetic fields. <i>Physical Review B</i>, <i>88</i>(3), Article 035429. <a href=\"https://doi.org/10.1103/physrevb.88.035429\">https://doi.org/10.1103/physrevb.88.035429</a>","short":"H. Liu, S. Schumacher, T. Meier, Physical Review B 88 (2013).","mla":"Liu, Hong, et al. “Selection Rules and Linear Absorption Spectra of Carbon Nanotubes in Axial Magnetic Fields.” <i>Physical Review B</i>, vol. 88, no. 3, 035429, 2013, doi:<a href=\"https://doi.org/10.1103/physrevb.88.035429\">10.1103/physrevb.88.035429</a>.","bibtex":"@article{Liu_Schumacher_Meier_2013, title={Selection rules and linear absorption spectra of carbon nanotubes in axial magnetic fields}, volume={88}, DOI={<a href=\"https://doi.org/10.1103/physrevb.88.035429\">10.1103/physrevb.88.035429</a>}, number={3035429}, journal={Physical Review B}, author={Liu, Hong and Schumacher, Stefan and Meier, Torsten}, year={2013} }"},"publication_status":"published","language":[{"iso":"eng"}],"publication_identifier":{"issn":["1098-0121","1550-235X"]},"year":"2013","status":"public","date_created":"2020-02-10T12:04:34Z","date_updated":"2025-12-05T14:55:03Z","_id":"15871"},{"date_updated":"2025-12-05T14:54:35Z","page":"6889-6895","_id":"15870","status":"public","publication_identifier":{"issn":["1932-7447","1932-7455"]},"year":"2013","type":"journal_article","language":[{"iso":"eng"}],"publication":"The Journal of Physical Chemistry C","date_created":"2020-02-10T12:03:41Z","department":[{"_id":"15"},{"_id":"170"},{"_id":"297"},{"_id":"35"},{"_id":"230"},{"_id":"27"}],"user_id":"16199","publication_status":"published","citation":{"chicago":"Ling, Sanliang, Stefan Schumacher, Ian Galbraith, and Martin J. Paterson. “Excited-State Absorption of Conjugated Polymers in the Near-Infrared and Visible: A Computational Study of Oligofluorenes.” <i>The Journal of Physical Chemistry C</i>, 2013, 6889–95. <a href=\"https://doi.org/10.1021/jp401359a\">https://doi.org/10.1021/jp401359a</a>.","ieee":"S. Ling, S. Schumacher, I. Galbraith, and M. J. Paterson, “Excited-State Absorption of Conjugated Polymers in the Near-Infrared and Visible: A Computational Study of Oligofluorenes,” <i>The Journal of Physical Chemistry C</i>, pp. 6889–6895, 2013, doi: <a href=\"https://doi.org/10.1021/jp401359a\">10.1021/jp401359a</a>.","apa":"Ling, S., Schumacher, S., Galbraith, I., &#38; Paterson, M. J. (2013). Excited-State Absorption of Conjugated Polymers in the Near-Infrared and Visible: A Computational Study of Oligofluorenes. <i>The Journal of Physical Chemistry C</i>, 6889–6895. <a href=\"https://doi.org/10.1021/jp401359a\">https://doi.org/10.1021/jp401359a</a>","ama":"Ling S, Schumacher S, Galbraith I, Paterson MJ. Excited-State Absorption of Conjugated Polymers in the Near-Infrared and Visible: A Computational Study of Oligofluorenes. <i>The Journal of Physical Chemistry C</i>. Published online 2013:6889-6895. doi:<a href=\"https://doi.org/10.1021/jp401359a\">10.1021/jp401359a</a>","short":"S. Ling, S. Schumacher, I. Galbraith, M.J. Paterson, The Journal of Physical Chemistry C (2013) 6889–6895.","mla":"Ling, Sanliang, et al. “Excited-State Absorption of Conjugated Polymers in the Near-Infrared and Visible: A Computational Study of Oligofluorenes.” <i>The Journal of Physical Chemistry C</i>, 2013, pp. 6889–95, doi:<a href=\"https://doi.org/10.1021/jp401359a\">10.1021/jp401359a</a>.","bibtex":"@article{Ling_Schumacher_Galbraith_Paterson_2013, title={Excited-State Absorption of Conjugated Polymers in the Near-Infrared and Visible: A Computational Study of Oligofluorenes}, DOI={<a href=\"https://doi.org/10.1021/jp401359a\">10.1021/jp401359a</a>}, journal={The Journal of Physical Chemistry C}, author={Ling, Sanliang and Schumacher, Stefan and Galbraith, Ian and Paterson, Martin J.}, year={2013}, pages={6889–6895} }"},"doi":"10.1021/jp401359a","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"author":[{"full_name":"Ling, Sanliang","first_name":"Sanliang","last_name":"Ling"},{"id":"27271","last_name":"Schumacher","first_name":"Stefan","full_name":"Schumacher, Stefan","orcid":"0000-0003-4042-4951"},{"last_name":"Galbraith","full_name":"Galbraith, Ian","first_name":"Ian"},{"last_name":"Paterson","full_name":"Paterson, Martin J.","first_name":"Martin J."}],"title":"Excited-State Absorption of Conjugated Polymers in the Near-Infrared and Visible: A Computational Study of Oligofluorenes"},{"user_id":"16199","doi":"10.1080/00150193.2013.821904","project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"title":"LiNb1-xTaxO3Electronic Structure and Optical Response fromFirst-PrinciplesCalculations","volume":447,"page":"78-85","type":"journal_article","publication":"Ferroelectrics","department":[{"_id":"15"},{"_id":"170"},{"_id":"295"},{"_id":"35"},{"_id":"230"},{"_id":"27"}],"publication_status":"published","citation":{"ieee":"A. Riefer, S. Sanna, and W. G. Schmidt, “LiNb1-xTaxO3Electronic Structure and Optical Response fromFirst-PrinciplesCalculations,” <i>Ferroelectrics</i>, vol. 447, pp. 78–85, 2013, doi: <a href=\"https://doi.org/10.1080/00150193.2013.821904\">10.1080/00150193.2013.821904</a>.","chicago":"Riefer, A., S. Sanna, and Wolf Gero Schmidt. “LiNb1-XTaxO3Electronic Structure and Optical Response FromFirst-PrinciplesCalculations.” <i>Ferroelectrics</i> 447 (2013): 78–85. <a href=\"https://doi.org/10.1080/00150193.2013.821904\">https://doi.org/10.1080/00150193.2013.821904</a>.","ama":"Riefer A, Sanna S, Schmidt WG. LiNb1-xTaxO3Electronic Structure and Optical Response fromFirst-PrinciplesCalculations. <i>Ferroelectrics</i>. 2013;447:78-85. doi:<a href=\"https://doi.org/10.1080/00150193.2013.821904\">10.1080/00150193.2013.821904</a>","apa":"Riefer, A., Sanna, S., &#38; Schmidt, W. G. (2013). LiNb1-xTaxO3Electronic Structure and Optical Response fromFirst-PrinciplesCalculations. <i>Ferroelectrics</i>, <i>447</i>, 78–85. <a href=\"https://doi.org/10.1080/00150193.2013.821904\">https://doi.org/10.1080/00150193.2013.821904</a>","short":"A. Riefer, S. Sanna, W.G. Schmidt, Ferroelectrics 447 (2013) 78–85.","bibtex":"@article{Riefer_Sanna_Schmidt_2013, title={LiNb1-xTaxO3Electronic Structure and Optical Response fromFirst-PrinciplesCalculations}, volume={447}, DOI={<a href=\"https://doi.org/10.1080/00150193.2013.821904\">10.1080/00150193.2013.821904</a>}, journal={Ferroelectrics}, author={Riefer, A. and Sanna, S. and Schmidt, Wolf Gero}, year={2013}, pages={78–85} }","mla":"Riefer, A., et al. “LiNb1-XTaxO3Electronic Structure and Optical Response FromFirst-PrinciplesCalculations.” <i>Ferroelectrics</i>, vol. 447, 2013, pp. 78–85, doi:<a href=\"https://doi.org/10.1080/00150193.2013.821904\">10.1080/00150193.2013.821904</a>."},"intvolume":"       447","author":[{"last_name":"Riefer","full_name":"Riefer, A.","first_name":"A."},{"last_name":"Sanna","full_name":"Sanna, S.","first_name":"S."},{"orcid":"0000-0002-2717-5076","last_name":"Schmidt","id":"468","full_name":"Schmidt, Wolf Gero","first_name":"Wolf Gero"}],"date_updated":"2025-12-16T07:52:52Z","_id":"13819","status":"public","language":[{"iso":"eng"}],"publication_identifier":{"issn":["0015-0193","1563-5112"]},"year":"2013","funded_apc":"1","date_created":"2019-10-15T06:45:01Z"},{"user_id":"16199","external_id":{"isi":["000360004100009"]},"file":[{"description":"© 2013 Springer International Publishing, Switzerland","creator":"schindlm","file_size":517819,"access_level":"closed","title":"Lithium niobate dielectric function and second-order polarizability tensor from massively parallel ab initio calculations","date_updated":"2020-08-30T14:57:36Z","relation":"main_file","file_name":"Riefer2013_Chapter_LithiumNiobateDielectricFuncti.pdf","file_id":"18586","content_type":"application/pdf","date_created":"2020-08-28T15:34:44Z"}],"title":"Lithium niobate dielectric function and second-order polarizability tensor from massively parallel ab initio calculations","abstract":[{"lang":"eng","text":"The frequency-dependent dielectric function and the second-order polarizability tensor of ferroelectric LiNbO3 are calculated from first principles. The calculations are based on the electronic structure obtained from density-functional theory. The subsequent application of the GW approximation to account for quasiparticle effects and the solution of the Bethe–Salpeter equation yield a dielectric function for the stoichiometric material that slightly overestimates the absorption onset and the oscillator strength in comparison with experimental measurements. Calculations at the level of the independent-particle approximation indicate that these deficiencies are at least partially related to the neglect of intrinsic defects typical for the congruent material. The second-order polarizability calculated within the independent-particle approximation predicts strong nonlinear coefficients for photon energies above 1.5 eV. The comparison with measured data suggests that self-energy effects improve the agreement between experiment and theory. The intrinsic defects of congruent samples reduce the optical nonlinearities, in particular for the 21 and 31 tensor components, further improving the agreement with measured data."}],"has_accepted_license":"1","doi":"10.1007/978-3-319-02165-2_8","project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"page":"93-104","publication":"High Performance Computing in Science and Engineering ‘13","ddc":["530"],"quality_controlled":"1","type":"book_chapter","publication_status":"published","citation":{"ama":"Riefer A, Rohrmüller M, Landmann M, et al. Lithium niobate dielectric function and second-order polarizability tensor from massively parallel ab initio calculations. In: Nagel WE, Kröner DH, Resch MM, eds. <i>High Performance Computing in Science and Engineering ‘13</i>. Transactions of the High Performance Computing Center, Stuttgart. Springer; 2013:93-104. doi:<a href=\"https://doi.org/10.1007/978-3-319-02165-2_8\">10.1007/978-3-319-02165-2_8</a>","apa":"Riefer, A., Rohrmüller, M., Landmann, M., Sanna, S., Rauls, E., Vollmers, N. J., Hölscher, R., Witte, M., Li, Y., Gerstmann, U., Schindlmayr, A., &#38; Schmidt, W. G. (2013). Lithium niobate dielectric function and second-order polarizability tensor from massively parallel ab initio calculations. In W. E. Nagel, D. H. Kröner, &#38; M. M. Resch (Eds.), <i>High Performance Computing in Science and Engineering ‘13</i> (pp. 93–104). Springer. <a href=\"https://doi.org/10.1007/978-3-319-02165-2_8\">https://doi.org/10.1007/978-3-319-02165-2_8</a>","ieee":"A. Riefer <i>et al.</i>, “Lithium niobate dielectric function and second-order polarizability tensor from massively parallel ab initio calculations,” in <i>High Performance Computing in Science and Engineering ‘13</i>, W. E. Nagel, D. H. Kröner, and M. M. Resch, Eds. Cham: Springer, 2013, pp. 93–104.","chicago":"Riefer, Arthur, Martin Rohrmüller, Marc Landmann, Simone Sanna, Eva Rauls, Nora Jenny Vollmers, Rebecca Hölscher, et al. “Lithium Niobate Dielectric Function and Second-Order Polarizability Tensor from Massively Parallel Ab Initio Calculations.” In <i>High Performance Computing in Science and Engineering ‘13</i>, edited by Wolfgang E. Nagel, Dietmar H. Kröner, and Michael M. Resch, 93–104. Transactions of the High Performance Computing Center, Stuttgart. Cham: Springer, 2013. <a href=\"https://doi.org/10.1007/978-3-319-02165-2_8\">https://doi.org/10.1007/978-3-319-02165-2_8</a>.","bibtex":"@inbook{Riefer_Rohrmüller_Landmann_Sanna_Rauls_Vollmers_Hölscher_Witte_Li_Gerstmann_et al._2013, place={Cham}, series={Transactions of the High Performance Computing Center, Stuttgart}, title={Lithium niobate dielectric function and second-order polarizability tensor from massively parallel ab initio calculations}, DOI={<a href=\"https://doi.org/10.1007/978-3-319-02165-2_8\">10.1007/978-3-319-02165-2_8</a>}, booktitle={High Performance Computing in Science and Engineering ‘13}, publisher={Springer}, author={Riefer, Arthur and Rohrmüller, Martin and Landmann, Marc and Sanna, Simone and Rauls, Eva and Vollmers, Nora Jenny and Hölscher, Rebecca and Witte, Matthias and Li, Yanlu and Gerstmann, Uwe and et al.}, editor={Nagel, Wolfgang E. and Kröner, Dietmar H. and Resch, Michael M.}, year={2013}, pages={93–104}, collection={Transactions of the High Performance Computing Center, Stuttgart} }","mla":"Riefer, Arthur, et al. “Lithium Niobate Dielectric Function and Second-Order Polarizability Tensor from Massively Parallel Ab Initio Calculations.” <i>High Performance Computing in Science and Engineering ‘13</i>, edited by Wolfgang E. Nagel et al., Springer, 2013, pp. 93–104, doi:<a href=\"https://doi.org/10.1007/978-3-319-02165-2_8\">10.1007/978-3-319-02165-2_8</a>.","short":"A. Riefer, M. Rohrmüller, M. Landmann, S. Sanna, E. Rauls, N.J. Vollmers, R. Hölscher, M. Witte, Y. Li, U. Gerstmann, A. Schindlmayr, W.G. Schmidt, in: W.E. Nagel, D.H. Kröner, M.M. Resch (Eds.), High Performance Computing in Science and Engineering ‘13, Springer, Cham, 2013, pp. 93–104."},"series_title":"Transactions of the High Performance Computing Center, Stuttgart","department":[{"_id":"296"},{"_id":"295"},{"_id":"35"},{"_id":"15"},{"_id":"170"},{"_id":"790"},{"_id":"230"},{"_id":"27"}],"editor":[{"first_name":"Wolfgang E.","full_name":"Nagel, Wolfgang E.","last_name":"Nagel"},{"full_name":"Kröner, Dietmar H.","first_name":"Dietmar H.","last_name":"Kröner"},{"last_name":"Resch","first_name":"Michael M.","full_name":"Resch, Michael M."}],"author":[{"last_name":"Riefer","full_name":"Riefer, Arthur","first_name":"Arthur"},{"full_name":"Rohrmüller, Martin","first_name":"Martin","last_name":"Rohrmüller"},{"full_name":"Landmann, Marc","first_name":"Marc","last_name":"Landmann"},{"last_name":"Sanna","full_name":"Sanna, Simone","first_name":"Simone"},{"full_name":"Rauls, Eva","first_name":"Eva","last_name":"Rauls"},{"first_name":"Nora Jenny","full_name":"Vollmers, Nora Jenny","last_name":"Vollmers"},{"full_name":"Hölscher, Rebecca","first_name":"Rebecca","last_name":"Hölscher"},{"full_name":"Witte, Matthias","first_name":"Matthias","last_name":"Witte"},{"last_name":"Li","first_name":"Yanlu","full_name":"Li, Yanlu"},{"last_name":"Gerstmann","id":"171","full_name":"Gerstmann, Uwe","first_name":"Uwe","orcid":"0000-0002-4476-223X"},{"orcid":"0000-0002-4855-071X","last_name":"Schindlmayr","id":"458","full_name":"Schindlmayr, Arno","first_name":"Arno"},{"first_name":"Wolf Gero","full_name":"Schmidt, Wolf Gero","last_name":"Schmidt","id":"468","orcid":"0000-0002-2717-5076"}],"place":"Cham","_id":"18475","file_date_updated":"2020-08-30T14:57:36Z","isi":"1","date_updated":"2025-12-16T08:07:02Z","publisher":"Springer","date_created":"2020-08-27T21:48:43Z","status":"public","language":[{"iso":"eng"}],"publication_identifier":{"eisbn":["978-3-319-02165-2"],"isbn":["978-3-319-02164-5"]},"year":"2013"},{"status":"public","year":"2012","type":"journal_article","language":[{"iso":"eng"}],"publication":"Journal of Grid Computing","date_created":"2018-03-29T11:16:18Z","date_updated":"2022-01-06T06:54:09Z","issue":"3","volume":10,"_id":"1965","page":"553-577","abstract":[{"lang":"eng","text":"Virtualization technology makes data centers more dynamic and easier to administrate. Today, cloud providers offer customers access to complex applications running on virtualized hardware. Nevertheless, big virtualized data centers become stochastic environments and the simplification on the user side leads to many challenges for the provider. He has to find cost-efficient configurations and has to deal with dynamic environments to ensure service level objectives (SLOs). We introduce a software solution that reduces the degree of human intervention to manage clouds. It is designed as a multi-agent system (MAS) and placed on top of the Infrastructure as a Service (IaaS) layer. Worker agents allocate resources, configure applications, check the feasibility of requests, and generate cost estimates. They are equipped with application specific knowledge allowing it to estimate the type and number of necessary resources. During runtime, a worker agent monitors the job and adapts its resources to ensure the specified quality of service—even in noisy clouds where the job instances are influenced by other jobs. They interact with a scheduler agent, which takes care of limited resources and does a cost-aware scheduling by assigning jobs to times with low costs. The whole architecture is self-optimizing and able to use public or private clouds. Building a private cloud needs to face the challenge to find a mapping of virtual machines (VMs) to hosts. We present a rule-based mapping algorithm for VMs. It offers an interface where policies can be defined and combined in a generic way. The algorithm performs the initial mapping at request time as well as a remapping during runtime. It deals with policy and infrastructure changes. An energy-aware scheduler and the availability of cheap resources provided by a spot market are analyzed. We evaluated our approach by building up an SaaS stack, which assigns resources in consideration of an energy function and that ensures SLOs of two different applications, a brokerage system and a high-performance computing software. Experiments were done on a real cloud system and by simulations."}],"intvolume":"        10","doi":"10.1007/s10723-012-9230-7","author":[{"last_name":"Niehörster","first_name":"Oliver","full_name":"Niehörster, Oliver"},{"last_name":"Simon","id":"15273","full_name":"Simon, Jens","first_name":"Jens"},{"full_name":"Brinkmann, André","first_name":"André","last_name":"Brinkmann"},{"id":"15274","last_name":"Keller","full_name":"Keller, Axel","first_name":"Axel"},{"full_name":"Krüger, Jens","first_name":"Jens","last_name":"Krüger"}],"title":"Cost-aware and SLO Fulfilling Software as a Service","department":[{"_id":"27"}],"user_id":"15274","publication_status":"published","citation":{"apa":"Niehörster, O., Simon, J., Brinkmann, A., Keller, A., &#38; Krüger, J. (2012). Cost-aware and SLO Fulfilling Software as a Service. <i>Journal of Grid Computing</i>, <i>10</i>(3), 553–577. <a href=\"https://doi.org/10.1007/s10723-012-9230-7\">https://doi.org/10.1007/s10723-012-9230-7</a>","ama":"Niehörster O, Simon J, Brinkmann A, Keller A, Krüger J. Cost-aware and SLO Fulfilling Software as a Service. <i>Journal of Grid Computing</i>. 2012;10(3):553-577. doi:<a href=\"https://doi.org/10.1007/s10723-012-9230-7\">10.1007/s10723-012-9230-7</a>","chicago":"Niehörster, Oliver, Jens Simon, André Brinkmann, Axel Keller, and Jens Krüger. “Cost-Aware and SLO Fulfilling Software as a Service.” <i>Journal of Grid Computing</i> 10, no. 3 (2012): 553–77. <a href=\"https://doi.org/10.1007/s10723-012-9230-7\">https://doi.org/10.1007/s10723-012-9230-7</a>.","ieee":"O. Niehörster, J. Simon, A. Brinkmann, A. Keller, and J. Krüger, “Cost-aware and SLO Fulfilling Software as a Service,” <i>Journal of Grid Computing</i>, vol. 10, no. 3, pp. 553–577, 2012.","mla":"Niehörster, Oliver, et al. “Cost-Aware and SLO Fulfilling Software as a Service.” <i>Journal of Grid Computing</i>, vol. 10, no. 3, 2012, pp. 553–77, doi:<a href=\"https://doi.org/10.1007/s10723-012-9230-7\">10.1007/s10723-012-9230-7</a>.","bibtex":"@article{Niehörster_Simon_Brinkmann_Keller_Krüger_2012, title={Cost-aware and SLO Fulfilling Software as a Service}, volume={10}, DOI={<a href=\"https://doi.org/10.1007/s10723-012-9230-7\">10.1007/s10723-012-9230-7</a>}, number={3}, journal={Journal of Grid Computing}, author={Niehörster, Oliver and Simon, Jens and Brinkmann, André and Keller, Axel and Krüger, Jens}, year={2012}, pages={553–577} }","short":"O. Niehörster, J. Simon, A. Brinkmann, A. Keller, J. 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