| 書(shū)目名稱 | Many-Body Schr?dinger Dynamics of Bose-Einstein Condensates |
| 編輯 | Kaspar Sakmann |
| 視頻video | http://file.papertrans.cn/624/623686/623686.mp4 |
| 概述 | A new theoretical approach to understanding the dynamics of Bose-Einstein condensates.Develops optimized models that are shown to perform better than conventional models.Nominated as an outstanding co |
| 叢書(shū)名稱 | Springer Theses |
| 圖書(shū)封面 |  |
| 描述 | .At extremely low temperatures, clouds of bosonic atoms form what is known as a Bose-Einstein condensate. Recently, it has become clear that many different types of condensates? -- so called fragmented condensates -- exist. In order to tell whether fragmentation occurs or not, it is necessary to solve the full many-body Schr?dinger equation, a task that remained elusive for experimentally relevant conditions for many years. In this thesis the first numerically exact solutions of the time-dependent many-body Schr?dinger equation for a bosonic Josephson junction are provided and compared to the approximate Gross-Pitaevskii and Bose-Hubbard theories. It is thereby shown that the dynamics of? Bose-Einstein condensates is far more intricate than one would anticipate based on these approximations. A special conceptual innovation in this thesis are optimal lattice models. It is shown how all quantum lattice models of condensed matter physics that are based on Wannier functions, e.g. the? Bose/Fermi Hubbard model, can be optimized variationally. This leads to exciting new physics.. |
| 出版日期 | Book 2011 |
| 關(guān)鍵詞 | Bosonic Josephson junction; Exact solution Schr?dinger equation; Fragmented condensates; Many-body Bose |
| 版次 | 1 |
| doi | https://doi.org/10.1007/978-3-642-22866-7 |
| isbn_softcover | 978-3-642-27105-2 |
| isbn_ebook | 978-3-642-22866-7Series ISSN 2190-5053 Series E-ISSN 2190-5061 |
| issn_series | 2190-5053 |
| copyright | Springer-Verlag Berlin Heidelberg 2011 |
|Archiver|手機(jī)版|小黑屋|
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