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| HAL : in2p3-00256291, version 1 |
| arXiv : 0802.1981 |
| DOI : 10.1103/PhysRevE.77.041126 |
| Fiche détaillée |  Récupérer au format |
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| Physical Review E 77 (2008) 041126 |
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| Exact stochastic simulation of dissipation and non-Markovian effects in open quantum systems |
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| D. Lacroix1 |
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| (2008) |
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| The exact dynamics of a system coupled to an environment can be described by an integro-differential stochastic equation on its reduced density. The environment influence is incorporated through a mean-field which is both stochastic and non-local in time and where the standard two-times correlation functions of the environment appear naturally. Since no approximation is made, the presented theory incorporate exactly dissipative and non-Markovian effects. Applications to the spin-boson model coupled to a heat-bath either in the weak and strong coupling limit show that the presented stochastic theory can be a valuable tool to simulate exactly the dynamics of open quantum systems. Links with Stochastic Schroedinger Equations method and possible extensions to "imaginary time" propagation are discussed. |
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| 1 : | GANIL - Grand Accélérateur National d'Ions Lourds |
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| Thème(s) | : | Physique/Physique Quantique |
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| Lien vers le texte intégral : |
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| http://fr.arXiv.org/abs/0802.1981 |
| in2p3-00256291, version 1 | |
| http://hal.in2p3.fr/in2p3-00256291 | |
| oai:hal.in2p3.fr:in2p3-00256291 | |
| Contributeur : Michel Lion | |
| Déposé pour le compte de : | |
| Soumis le : Vendredi 15 Février 2008, 10:37:31 | |
| Dernière modification le : Jeudi 1 Mai 2008, 18:04:08 | |
