000 | 03095nam a22004575i 4500 | ||
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001 | 978-3-642-22866-7 | ||
003 | DE-He213 | ||
005 | 20140220083810.0 | ||
007 | cr nn 008mamaa | ||
008 | 110830s2011 gw | s |||| 0|eng d | ||
020 |
_a9783642228667 _9978-3-642-22866-7 |
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024 | 7 |
_a10.1007/978-3-642-22866-7 _2doi |
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050 | 4 | _aQC175.16.C6 | |
072 | 7 |
_aPHM _2bicssc |
|
072 | 7 |
_aSCI057000 _2bisacsh |
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072 | 7 |
_aSCI074000 _2bisacsh |
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082 | 0 | 4 |
_a539 _223 |
100 | 1 |
_aSakmann, Kaspar. _eauthor. |
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245 | 1 | 0 |
_aMany-Body Schrödinger Dynamics of Bose-Einstein Condensates _h[electronic resource] / _cby Kaspar Sakmann. |
264 | 1 |
_aBerlin, Heidelberg : _bSpringer Berlin Heidelberg, _c2011. |
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300 |
_aXII, 132 p. _bonline resource. |
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336 |
_atext _btxt _2rdacontent |
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337 |
_acomputer _bc _2rdamedia |
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338 |
_aonline resource _bcr _2rdacarrier |
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347 |
_atext file _bPDF _2rda |
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490 | 1 | _aSpringer Theses | |
505 | 0 | _aGeneral Theory -- General Methods for the Quantum Dynamics of Identical Bosons -- Lattice Models for the Quantum Dynamics of Identical Bosons.- Reduced Density Matrices and Coherence of Trapped Interacting Bosons -- Exact Quantum Dynamics of a Bosonic Josephson Junction -- Quantum Dynamics of Attractive vs. Repulsive Bosonic Josephson Junctions: Bose-Hubbard and full-Hamiltonian Results -- Optimal Time-Dependent Lattice Models for Nonequilibrium Dynamics.-Final Remarks and Outlook.-Appendices. | |
520 | _aAt 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 Schrödinger 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 Schrödinger 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. | ||
650 | 0 | _aPhysics. | |
650 | 1 | 4 | _aPhysics. |
650 | 2 | 4 | _aQuantum Gases and Condensates. |
650 | 2 | 4 | _aTheoretical, Mathematical and Computational Physics. |
650 | 2 | 4 | _aStrongly Correlated Systems, Superconductivity. |
710 | 2 | _aSpringerLink (Online service) | |
773 | 0 | _tSpringer eBooks | |
776 | 0 | 8 |
_iPrinted edition: _z9783642228650 |
830 | 0 | _aSpringer Theses | |
856 | 4 | 0 | _uhttp://dx.doi.org/10.1007/978-3-642-22866-7 |
912 | _aZDB-2-PHA | ||
999 |
_c108271 _d108271 |