Density Matrix of a Finite Sub-chain of the Heisenberg Anti-ferromagnet

2005/06/30 by H. Boos, M. Jimbo, T. Miwa +2 · 3 citations
Mathematics · Physics and Astronomy · #Algebraic structures and combinatorial models #Nonlinear Waves and Solitons #Spectral Theory in Mathematical Physics #cond-mat.stat-mech #hep-th #math.QA #nlin.SI

paper · pdf · doi:10.1007/s11005-006-0054-x

published as Lett.Math.Phys. 75 (2006) 201-208 · 6 pages, some formulas are refined

arxiv created 2006/01/10 · openalex publication_date 2006/02/16 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We consider a finite sub-chain on an interval of the infinite XXX model in the ground state. The density matrix for such a subsystem was described in our previous works for the model with inhomogeneous spectral parameters. In the present paper, we give a compact formula for the physically interesting case of the homogeneous model.

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