A Haldane-Shastry spin chain of BC_N type in a constant magnetic field
A. Enciso, F. Finkel, A. Gonzalez-Lopez, and M.A. Rodriguez
TL;DR
This paper derives an exact partition function for a BC_N type Haldane-Shastry spin chain in a magnetic field by analyzing the spectrum of a related Sutherland model, advancing understanding of integrable spin systems.
Contribution
It introduces an exact formula for the partition function of a BC_N type Haldane-Shastry spin chain in a magnetic field, using Polychronakos's freezing trick.
Findings
Exact partition function formula derived
Spectrum of BC_N type Sutherland model computed
Analysis of spin chain in magnetic field conducted
Abstract
We compute the spectrum of the trigonometric Sutherland spin model of BC_N type in the presence of a constant magnetic field. Using Polychronakos's freezing trick, we derive an exact formula for the partition function of its associated Haldane-Shastry spin chain.
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