Thermodynamic Bethe ansatz equation for osp(1|2) integrable spin chain
Kazumitsu Sakai, Zengo Tsuboi
TL;DR
This paper derives thermodynamic Bethe ansatz equations for an osp(1|2) integrable spin chain, providing insights into its thermodynamic properties and low-temperature behavior.
Contribution
It introduces a new set of thermodynamic Bethe ansatz equations for the osp(1|2) spin chain using the string hypothesis, advancing understanding of superalgebra-based integrable models.
Findings
Derived infinite non-linear integral equations for the model
Analyzed low temperature limit of free energy
Enhanced understanding of osp(1|2) integrable systems
Abstract
The thermodynamic Bethe ansatz is applied to a quantum integrable spin chain associated with the Lie superalgebra osp(1|2). Using the string hypothesis, we derive a set of infinite number of non-linear integral equations (thermodynamic Bethe ansatz equation), which characterize the free energy. The low temperature limit of the free energy is also discussed.
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