2 papers
cond-mat.str-el2026
Nonlinear sigma models, antiperiodic boundary conditions, spin chains, and 't Hooft anomalies
Nicholas Read, Hubert Saleur
We consider two sets of related models: initially, these are antiferromagnetic spin chains with sites of spin , and the nonlinear sigma model in two dimension…
quant-ph2025
Highly entangled stationary states from strong symmetries
Yahui Li, Frank Pollmann, Nicholas Read +1
We find that the presence of strong non-Abelian conserved quantities can lead to highly entangled stationary states even for unital quantum channels. We derive exact expressions fo…