Séminaire du LPTMS: Thomas Quella


11:00 - 12:00

LPTMS, salle 201, 2ème étage, Bât 100, Campus d'Orsay
15 Rue Georges Clemenceau, Orsay, 91405

Type d’évènement

Chargement de la carte…

Topological aspects of SU(N) magnetism and its cold atom realization

Thomas Quella, Universität Köln

SU(N) spin systems exhibit a number of novel topological quantum states, including specifically a variety of Haldane phases (in 1D) and abelian and non-abelian spin liquid phases (in 2D). In this talk we will review the classification of Haldane phases and their characterization in terms of fractionalized boundary spins and non-local string order parameters. Moreover, we will address the possible realization of these phases in ultra-cold gases of alkaline-earth fermions. If time permits we will also briefly comment on the systematic design of critical and topological long-range SU(N) spin models in one and two dimensions which are based on infinite dimensional matrix product states associated with SU(N) WZW models.

Retour en haut