Out of equilibrium correlations in the XY chain

Walter H. Aschbacher (1) , Jean-Marie Barbaroux (2, 3)

1 Technische Universitaet Muenchen
2 CPT - Centre de Physique Théorique - UMR 6207
3 CPT - Centre de Physique Théorique - UMR 7332

We study the transversal XY spin-spin correlations in the non-equilibrium steady state constructed in \cite{AP03} and prove their spatial exponential decay close to equilibrium.

Domaines: Physique mathématique [math-ph]; Physique mathématique [math-ph]; Algèbres quantiques [math.QA]

Walter H. Aschbacher, Jean-Marie Barbaroux. Out of equilibrium correlations in the XY chain. Letters in Mathematical Physics, 2006, 77, ⟨10.1007/s11005-006-0049-7⟩. ⟨hal-00008347⟩