A remark on the subleading order in the asymptotics of the nonequilibrium emptiness formation probability

Details A remark on the subleading order in the asymptotics of the nonequilibrium emptiness formation probability A remark on the subleading order in the asymptotics of the nonequilibrium emptiness formation probability

2010-09-08

arxiv.org/abs/1009.1584v1

Confluentes Math. 2 (2010) 293-311

Physics

Mathematical Physics

20 pages, 2 figures

Scientific paper

We study the asymptotic behavior of the emptiness formation probability for large spin strings in a translation invariant quasifree nonequilibrium steady state of the isotropic XY chain. Besides the overall exponential decay, we prove that, out of equilibrium, the exponent of the subleading power law contribution to the asymptotics is nonvanishing and strictly positive due to the singularities in the density of the steady state.

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