{"abstract":[{"text":"We study phonon-assisted electron tunneling in semiconductor quantum dot molecules. In particular, singletsinglet\r\nrelaxation in a two-electron-doped structure is considered. The influence of Coulomb interaction is\r\ndiscussed via comparison with a single-electron system. We find that the relaxation rate reaches similar values\r\nin the two cases but the Coulomb interaction shifts the maximum rates toward larger separations between the\r\ndots. The difference in electron-phonon interaction between deformation potential and piezoelectric coupling is\r\ninvestigated. We show that the phonon-induced tunneling between two-electron singlet states is a fast process,\r\ntaking place on the time scales of the order of a few tens of picoseconds.","lang":"eng"}],"has_accepted_license":"1","date_created":"2018-08-28T10:21:47Z","keyword":["tet_topic_qd"],"file_date_updated":"2018-08-28T10:22:35Z","publication_status":"published","issue":"8","ddc":["530"],"file":[{"success":1,"file_id":"4188","file_name":"2008 Grodecka,Machnikowski,Förstner_Phonon-assisted tunneling between singlet states in two-electron quantum dot molecules.pdf","content_type":"application/pdf","access_level":"closed","relation":"main_file","date_created":"2018-08-28T10:22:35Z","date_updated":"2018-08-28T10:22:35Z","creator":"hclaudia","file_size":2536294}],"article_number":"085302","doi":"10.1103/physrevb.78.085302","publisher":"American Physical Society (APS)","author":[{"first_name":"A.","last_name":"Grodecka","full_name":"Grodecka, A."},{"last_name":"Machnikowski","full_name":"Machnikowski, P.","first_name":"P."},{"first_name":"Jens","orcid":"0000-0001-7059-9862","full_name":"Förstner, Jens","last_name":"Förstner","id":"158"}],"year":"2008","status":"public","intvolume":"        78","user_id":"55706","citation":{"bibtex":"@article{Grodecka_Machnikowski_Förstner_2008, title={Phonon-assisted tunneling between singlet states in two-electron quantum dot molecules}, volume={78}, DOI={<a href=\"https://doi.org/10.1103/physrevb.78.085302\">10.1103/physrevb.78.085302</a>}, number={8085302}, journal={Physical Review B}, publisher={American Physical Society (APS)}, author={Grodecka, A. and Machnikowski, P. and Förstner, Jens}, year={2008} }","ama":"Grodecka A, Machnikowski P, Förstner J. Phonon-assisted tunneling between singlet states in two-electron quantum dot molecules. <i>Physical Review B</i>. 2008;78(8). doi:<a href=\"https://doi.org/10.1103/physrevb.78.085302\">10.1103/physrevb.78.085302</a>","mla":"Grodecka, A., et al. “Phonon-Assisted Tunneling between Singlet States in Two-Electron Quantum Dot Molecules.” <i>Physical Review B</i>, vol. 78, no. 8, 085302, American Physical Society (APS), 2008, doi:<a href=\"https://doi.org/10.1103/physrevb.78.085302\">10.1103/physrevb.78.085302</a>.","ieee":"A. Grodecka, P. Machnikowski, and J. Förstner, “Phonon-assisted tunneling between singlet states in two-electron quantum dot molecules,” <i>Physical Review B</i>, vol. 78, no. 8, 2008.","chicago":"Grodecka, A., P. Machnikowski, and Jens Förstner. “Phonon-Assisted Tunneling between Singlet States in Two-Electron Quantum Dot Molecules.” <i>Physical Review B</i> 78, no. 8 (2008). <a href=\"https://doi.org/10.1103/physrevb.78.085302\">https://doi.org/10.1103/physrevb.78.085302</a>.","short":"A. Grodecka, P. Machnikowski, J. Förstner, Physical Review B 78 (2008).","apa":"Grodecka, A., Machnikowski, P., &#38; Förstner, J. (2008). Phonon-assisted tunneling between singlet states in two-electron quantum dot molecules. <i>Physical Review B</i>, <i>78</i>(8). <a href=\"https://doi.org/10.1103/physrevb.78.085302\">https://doi.org/10.1103/physrevb.78.085302</a>"},"volume":78,"title":"Phonon-assisted tunneling between singlet states in two-electron quantum dot molecules","_id":"4187","publication_identifier":{"issn":["1098-0121","1550-235X"]},"department":[{"_id":"15"}],"language":[{"iso":"eng"}],"date_updated":"2022-01-06T07:00:31Z","type":"journal_article","publication":"Physical Review B","article_type":"original"}