Statut | Confirmé |
Série | CONDMAT-ENS |
Domaines | cond-mat |
Date | Jeudi 23 Juin 2011 |
Heure | 10:45 |
Institut | LPS/ENS |
Salle | E314 |
Nom de l'orateur | Kastrinakis |
Prenom de l'orateur | George |
Addresse email de l'orateur | kast [at] iesl [dot] forth [dot] gr |
Institution de l'orateur | IESL, Foundation for Research and Technology - Hellas, Crete |
Titre | New fermionic superfluid state |
Résumé | We introduce a new fermionic variational wavefunction, suitable for interacting multi-species systems of spinful fermions. This wavefunction sustains superfluidity. In this frame, we also introduce a new quantum index, which is related to the internal structure of the quantum state. Applications include quark matter, neutron stars, cold atoms and the high temperature superconductors. Spin up and down fermions are, in principle, inequivalent. Due to the inclusion of adequate 2-fermion correlations, a wider class of Hamiltonians than sheer Bardeen-Cooper-Schrieffer (BCS) type, comprising interaction and hybridization between different fermion species, can be treated "exactly", as in the well known manner of BCS theory. We present the finite temperature version of the theory, and we discuss the appearance of charge and spin density wave order. |
Numéro de preprint arXiv | |
Commentaires | Attention : jour et lieu inhabituels ! |
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