| HAL : hal-00000067, version 1 |
| arXiv : math-ph/0211053 |
| Fiche détaillée | Récupérer au format |
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| Semiclassical results in the linear response theory |
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| Monique Combescure1, 2Didier Robert3 |
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| (21/11/2002) |
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| We consider a quantum system of non-interacting fermions attemperature T, in the framework of linear response theory. We show that semiclassical theory is an appropriate framework to describe some of their thermodynamic properties, in particular through asymptotic expansions in $\hbar$ (Planck constant) of the dynamical susceptibilities. We show how the closed orbits of the classical motion in phase space manifest themselves in these expansions, in the regime where T is of the order of $\hbar$. |
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| 1 : | LPT - Laboratoire de Physique Théorique d'Orsay |
| 2 : | IPNL - Institut de Physique Nucléaire de Lyon |
| 3 : | LMJL - Laboratoire de Mathématiques Jean Leray |
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| Domaine | : | Mathématiques/Physique mathématique |
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| linear response – semiclassical limit – trace formula – low temperature |
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| Liste des fichiers attachés à ce document : | ||||||||||
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| hal-00000067, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00000067 | |
| oai:hal.archives-ouvertes.fr:hal-00000067 | |
| Contributeur : Didier Robert | |
| Soumis le : Jeudi 21 Novembre 2002, 16:30:40 | |
| Dernière modification le : Jeudi 21 Novembre 2002, 17:15:44 | |