Painleve transcendent describes quantum correlation function of the XXZ antiferromagnet away from the free-fermion point

We consider quantum correlation functions of the antiferromagnetic spin-1/2 Heisenberg XXZ spin chain in a magnetic field. We show that for a magnetic field close to the critical field hc (for the critical magnetic field the ground state is ferromagnetic) certain correlation functions can be express...

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מידע ביבליוגרפי
Main Authors: Essler, F, Frahm, H, Its, A, Korepin, V
פורמט: Journal article
שפה:English
יצא לאור: 1996