@inbook{18475, abstract = {{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.}}, 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 Schindlmayr, Arno and Schmidt, Wolf Gero}}, booktitle = {{High Performance Computing in Science and Engineering ‘13}}, editor = {{Nagel, Wolfgang E. and Kröner, Dietmar H. and Resch, Michael M.}}, isbn = {{978-3-319-02164-5}}, pages = {{93--104}}, publisher = {{Springer}}, title = {{{Lithium niobate dielectric function and second-order polarizability tensor from massively parallel ab initio calculations}}}, doi = {{10.1007/978-3-319-02165-2_8}}, year = {{2013}}, } @article{18476, abstract = {{We investigate the band dispersion and relevant electronic properties of rubrene single crystals within the GW approximation. Due to the self-energy correction, the dispersion of the highest occupied molecular orbital (HOMO) band increases by 0.10 eV compared to the dispersion of the Kohn-Sham eigenvalues within the generalized gradient approximation, and the effective hole mass consequently decreases. The resulting value of 0.90 times the electron rest mass along the Γ-Y direction in the Brillouin zone is closer to experimental measurements than that obtained from density-functional theory. The enhanced bandwidth is explained in terms of the intermolecular hybridization of the HOMO(Y) wave function along the stacking direction of the molecules. Overall, our results support the bandlike interpretation of charge-carrier transport in rubrene.}}, author = {{Yanagisawa, Susumu and Morikawa, Yoshitada and Schindlmayr, Arno}}, issn = {{1550-235X}}, journal = {{Physical Review B}}, number = {{11}}, publisher = {{American Physical Society}}, title = {{{HOMO band dispersion of crystalline rubrene: Effects of self-energy corrections within the GW approximation}}}, doi = {{10.1103/PhysRevB.88.115438}}, volume = {{88}}, year = {{2013}}, } @article{18479, abstract = {{The GW approximation for the electronic self-energy is an important tool for the quantitative prediction of excited states in solids, but its mathematical exploration is hampered by the fact that it must, in general, be evaluated numerically even for very simple systems. In this paper I describe a nontrivial model consisting of two electrons on the surface of a sphere, interacting with the normal long-range Coulomb potential, and show that the GW self-energy, in the absence of self-consistency, can in fact be derived completely analytically in this case. The resulting expression is subsequently used to analyze the convergence of the energy gap between the highest occupied and the lowest unoccupied quasiparticle orbital with respect to the total number of states included in the spectral summations. The asymptotic formula for the truncation error obtained in this way, whose dominant contribution is proportional to the cutoff energy to the power −3/2, may be adapted to extrapolate energy gaps in other systems.}}, author = {{Schindlmayr, Arno}}, issn = {{1550-235X}}, journal = {{Physical Review B}}, number = {{7}}, publisher = {{American Physical Society}}, title = {{{Analytic evaluation of the electronic self-energy in the GW approximation for two electrons on a sphere}}}, doi = {{10.1103/PhysRevB.87.075104}}, volume = {{87}}, year = {{2013}}, } @article{40403, author = {{Sharapova, Polina and Tikhonova, O V}}, issn = {{1612-2011}}, journal = {{Laser Physics Letters}}, keywords = {{Physics and Astronomy (miscellaneous), Instrumentation}}, number = {{7}}, publisher = {{IOP Publishing}}, title = {{{Coherent control of interaction and entanglement of a Rydberg atom with few photons}}}, doi = {{10.1088/1612-2011/10/7/075204}}, volume = {{10}}, year = {{2013}}, } @article{22952, author = {{Sternemann, E. and Jostmeier, T. and Ruppert, C. and Duc, H. T. and Meier, Torsten and Betz, M.}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{16}}, title = {{{Femtosecond quantum interference control of electrical currents in GaAs: Signatures beyond the perturbative χ(3) limit}}}, doi = {{10.1103/physrevb.88.165204}}, volume = {{88}}, year = {{2013}}, } @inproceedings{55046, author = {{Lyko, Klaus and Höffner, Konrad and Speck, René and Ngomo, Axel-Cyrille Ngonga and Lehmann, Jens}}, booktitle = {{The Semantic Web: ESWC 2013 Satellite Events: ESWC 2013 Satellite Events, Montpellier, France, May 26-30, 2013, Revised Selected Papers 10}}, pages = {{167–172}}, title = {{{SAIM–One step closer to zero-configuration link discovery}}}, year = {{2013}}, } @article{55050, author = {{Ngomo, A-C Ngonga and Heino, Norman and Speck, René and Ermilov, Timofey and Tsatsaronis, George}}, journal = {{BioASQ Deliverable D}}, pages = {{3}}, title = {{{Annotation Tool}}}, volume = {{3}}, year = {{2013}}, } @inbook{57273, author = {{Biehler, Rolf and Kempen, Leander}}, booktitle = {{Proceedings of the 8th Congress of the European Society for Research in Mathematics Education (CERME 8) Antalya February 2013}}, editor = {{Ubuz, B.}}, pages = {{86–95}}, title = {{{Students’ use of variables and examples in their transition from generic proof to formal proof}}}, year = {{2013}}, } @article{57425, author = {{Burrill, Gail and Biehler, Rolf}}, journal = {{Statistique et enseignement}}, number = {{1}}, pages = {{5–24}}, title = {{{Les idées statistiques fondamentales dans le curriculum scolaire}}}, volume = {{4}}, year = {{2013}}, } @inbook{57430, author = {{Becher, Silvia and Biehler, Rolf and Fischer, Pascal and Hochmuth, Reinhard and Wassong, Thomas}}, booktitle = {{Mathematik im Übergang Schule/Hochschule und im ersten Studienjahr. Extended Abstracts zur 2. khdm-Arbeitstagung 20.02. - 23.02.2013}}, editor = {{Hoppenbrock, Axel and Schreiber, S. and Göller, Robin and Biehler, Rolf and Büchler, B. and Hochmuth, Reinhard and Rück, H.-G.}}, pages = {{19--20}}, publisher = {{Universität Kassel}}, title = {{{Analyse der mathematischen Kompetenzen von Studienanfängern an den Universitäten Kassel und Paderborn}}}, year = {{2013}}, } @inbook{57424, author = {{Biehler, Rolf and Schaper, N. and Kortemeyer, Jörg}}, booktitle = {{Beiträge zum Mathematikunterricht 2013, Band 1}}, editor = {{Greefrath, G. and Käpnick, F. and Stein, M.}}, pages = {{544--547}}, publisher = {{WTM-Verlag}}, title = {{{Konzeptionalisierung von Lösungsprozessen bei mathematikhaltigen Elektrotechnik-Aufgaben}}}, doi = {{10.1007/978-3-658-03065-0_18}}, year = {{2013}}, } @inbook{57426, author = {{Becher, Silvia and Biehler, Rolf and Hochmuth, Reinhard and Püschl, Juliane and Schreiber, Stephan}}, booktitle = {{Beiträge zum Mathematikunterricht 2013, Band 1}}, editor = {{Greefrath, G. and Käpnick, F. and Stein, M.}}, pages = {{112--115}}, publisher = {{WTM-Verlag}}, title = {{{Von Zahlenmustern zur vollständigen Induktion: Analysen zur Argumentationsqualität von Studierenden im ersten Semester}}}, year = {{2013}}, } @inbook{57428, author = {{Biehler, Rolf and Kuzle, Ana and Oesterhaus, Janina and Wassong, Thomas}}, booktitle = {{Beiträge zum Mathematikunterricht 2013, Band 1}}, editor = {{Greefrath, G. and Käpnick, F. and Stein, M.}}, pages = {{148--151}}, publisher = {{WTM-Verlag}}, title = {{{Stochastikfortbildner fortbilden: ein projektorientiertes Konzept zur Multiplikatorenqualifikation}}}, year = {{2013}}, } @inbook{57427, author = {{Biehler, Rolf and Podworny, Susanne}}, booktitle = {{Beiträge zum Mathematikunterricht 2013, Band 1}}, editor = {{Greefrath, G. and Käpnick, F. and Stein, M.}}, pages = {{144--147}}, publisher = {{WTM-Verlag}}, title = {{{TinkerPlots 2.0: von realen Handlungen über Computersimulationen zum stochastischen Denken}}}, year = {{2013}}, } @book{57431, author = {{Biehler, Rolf and Hänze, M. and Hochmuth, Reinhard and Becher, Silvia and Fischer, E. and Püschl, Juliane and Schreiber, S.}}, publisher = {{Technische Bibliothek (TIB)}}, title = {{{Lehrinnovation in der Studieneingangsphase „Mathematik im Lehramtsstudium“ Hochschuldidakti-sche Grundlagen, Implementierung und Evaluation. Gesamtabschlussbericht des BMBF-Projekts LIMA.}}}, year = {{2013}}, } @inbook{57434, author = {{Kortemeyer, Jörg and Biehler, Rolf and Schaper, Niclas}}, booktitle = {{Mathematik im Übergang Schule/Hochschule und im ersten Studienjahr. Extended Abstracts zur 2. khdm-Arbeitstagung 20.02. - 23.02.2013}}, editor = {{Hoppenbrock, Axel and Schreiber, S. and Göller, Robin and Biehler, Rolf and Büchler, Bernd and Hochmuth, Reinhard and Rück, H.-G.}}, pages = {{95--96}}, publisher = {{Universität Kassel}}, title = {{{Mathematikbezogene Kompetenzmodellierung in der Studieneingangsphase elektrotechnischer Studiengänge im Projekt KoM@ ING}}}, year = {{2013}}, } @article{57432, author = {{Biehler, Rolf and Frischemeier, Daniel}}, journal = {{Stochastik in der Schule}}, number = {{3}}, pages = {{2–9}}, title = {{{Spielerisches Erlernen von Datenanalyse–Von Datenkarten und lebendiger Statistik zur Software TinkerPlots–Ein Workshop im Rahmen einer Lehrerfortbildung für die Primarstufe}}}, volume = {{33}}, year = {{2013}}, } @article{57433, author = {{Biehler, Rolf and Prömmel, Andreas}}, journal = {{Stochastik in der Schule}}, number = {{2}}, pages = {{14–25}}, title = {{{Von ersten stochastischen Erfahrungen mit großen Zahlen bis zum 1/√ n–Gesetz–ein didaktisch orientiertes Stufenkonzept}}}, volume = {{33}}, year = {{2013}}, } @misc{56122, author = {{Priesching, Nicole}}, booktitle = {{Les Femmes Mystiques. Histoire et Dictionnaire}}, editor = {{Fella, Audrey}}, pages = {{675–676}}, title = {{{Marie du Divin Coeur (Droste zu Vischering, Maria), (1863–1899)}}}, year = {{2013}}, } @misc{56121, author = {{Priesching, Nicole}}, booktitle = {{Les Femmes Mystiques. Histoire et Dictionnaire}}, editor = {{Fella, Audrey}}, pages = {{743–745}}, title = {{{Mörl, Maria von}}}, year = {{2013}}, }