Finite temperature correlation function for one-dimensional Quantum Ising model: the virial expansion

Abstract

We rewrite the exact expression for the finite temperature two-point correlation function for the magnetization as a partition function of some field theory. This removes singularities and provides a convenient form to develop a virial expansion (the expansion in powers of soliton density).

4 pages, 1 figure

References in corpus (1)

• Universal relaxational dynamics of gapped one dimensional models in the quantum sine-Gordon universality class

Cited by in corpus (3)

• Wigner crystal physics in quantum wires
• Finite-temperature lineshapes in gapped quantum spin chains
• Integral equations and large-time asymptotics for finite-temperature Ising chain correlation functions