Late-time large-distance asymptotics of the transverse correlation functions of the XX chain in the space-like regime
We derive an explicit expression for the leading term in the late-time, large-distance asymptotic expansion of a transverse dynamical two-point function of the XX chain in the spacelike regime. This expression is valid for all non-zero finite temperatures and for all magnetic fields below the saturation threshold. It is obtained here by means of a straightforward term-by-term analysis of a thermal form factor series, derived in previous work, and demonstrates the usefulness of the latter.
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Statistical Mechanics
High Energy Physics - Theory
Mathematical Physics
Mathematical Physics
