Top-level heading

Computing the category of superselection sectors of 2d lattice spin systems

Categoria
Altro (categoria non censita)
Categoria non censita
Operator Algebra Seminar In Tor Vergata
Data e ora inizio evento
Data e ora fine evento
Aula
Altro (Aula esterna al Dipartimento)
Sede

Dipartimento di Matematica, Università di Roma Tor Vergata

Aula esterna
Aula Dal Passo
Speaker
Boris Bolvig Kjær (Univ. of Copenhagen)
Abstract: In recent years, the analysis of topologically ordered ground states of 2d quantum lattice systems in the thermodynamic limit has been developed to provide a rigorous invariant of gapped phases. The methodology is based on the approach of Doplicher, Haag, and Roberts in the context of algebraic quantum field theory, and derives a braided C*-tensor category which represents the anyonic excitations above the ground state and the fusion and braiding among them. Note: This talk is part of the activity of the MUR Excellence Department Project MatMod@TOV (CUP E83C23000330006) The Operator Algebra Seminar schedule is here: https://sites.google.com/view/oastorvergata/home-page