Integral representation of the density matrix of the XXZ chain at finite temperatures
Dec, 2004Citations per year
Abstract: (arXiv)
We present an integral formula for the density matrix of a finite segment of the infinitely long spin-1/2 XXZ chain. This formula is valid for any temperature and any longitudinal magnetic field.Note:
- 12 pages, Latex Subj-class: Statistical Mechanics
- 75.10.Pq
- 05.30.-d
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