Dynamical correlation functions of the XXZ model at finite temperature

Abstract

Combining a lattice path integral formulation for thermodynamics with the solution of the quantum inverse scattering problem for local spin operators, we derive a multiple integral representation for the time-dependent longitudinal correlation function of the spin-1/2 Heisenberg XXZ chain at finite temperature and in an external magnetic field. Our formula reproduces the previous results in the following three limits: the static, the zero-temperature and the XY limits.

22 pages, v4: typos corrected, published version

References in corpus (2)

• The dynamical spin structure factor for the anisotropic spin-1/2 Heisenberg chain
• Spin diffusion and the anisotropic spin-1/2 Heisenberg chain

Cited by in corpus (3)

• A note on the spin-1/2 XXZ chain concerning its relation to the Bose gas
• Density matrix elements and entanglement entropy for the spin-1/2 XXZ chain at $\Delta$=1/2
• Correlation functions of an interacting spinless fermion model at finite temperature