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Statut |
Confirmé |
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Série |
CONDMAT-ENS |
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Domaines |
cond-mat |
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Date |
Mardi 16 Décembre 2008 |
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Heure |
10:45 |
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Institut |
LPS/ENS |
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Salle |
salle de conférences IV, café à 10h30 |
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Nom de l'orateur |
Thomale |
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Prenom de l'orateur |
Ronny |
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Addresse email de l'orateur |
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Institution de l'orateur |
Karlsruhe (Allemagne) |
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Titre |
Non-Abelian Statistics in a quantum antiferromagnet |
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Résumé |
We propose a novel spin liquid state for a spin S=1 antiferromagnet in two
dimensions. The ground state violates P and T, is a spin-singlet, and
is fully invariant under the lattice symmetries. The spinon and holon
excitations are deconfined and obey non-abelian statistics. We
present numerical evidence that the universality class of this
topological liquid can be stabilized by a local Hamiltonian involving
three-spin interactions. We hypothesize that spinons in spin liquids
with spin larger than 1/2 obey non-abelian statistics in general.
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Numéro de preprint arXiv |
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Commentaires |
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Fichiers attachés |
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