|
Statut |
Confirmé |
|
Série |
SEM-LPTHE |
|
Domaines |
cond-mat.stat-mech |
|
Date |
Vendredi 28 Septembre 2018 |
|
Heure |
11:00 |
|
Institut |
LPTHE |
|
Salle |
Bibliothèque |
|
Nom de l'orateur |
Fromholz |
|
Prenom de l'orateur |
Pierre |
|
Addresse email de l'orateur |
|
|
Institution de l'orateur |
LPTM Cergy |
|
Titre |
Haldane phases (and more) with ultra-cold fermions in double-well optical lattices |
|
Résumé |
Topological phases exist beyond the standard Ginzburg-Landau paradigm that dominated the understanding of phases and phase transitions in condensed matter systems.
Paradigmatic examples have been derived to establish a new theoretical basis that takes into consideration these topological aspects. The spin 1 Haldane phase is one of them for the unidimensional case. The seminar presents a way to implement this phase as well as its suggested generalizations by focusing using ultracold fermionic alkaline-earth atoms, that involve an internal SU(N) symmetry. The model describing the experiment is called the double-well model and depicts a lattice of two interacting chains. The model is analysed at weak coupling, strong coupling and using a numerical tool : DMRG. |
|
Numéro de preprint arXiv |
|
|
Commentaires |
|
|
Fichiers attachés |
|
