Phase diagram of the su(8) quantum spin tube
J. de Gier, M. T. Batchelor, M. Maslen (ANU)
TL;DR
This paper determines the phase diagram of an integrable su(8) quantum spin tube, revealing multiple quantum phase transitions with exact solutions from Bethe Ansatz, and characterizes the distinct phases involved.
Contribution
It provides the first exact phase diagram for an su(8) quantum spin tube using Bethe Ansatz, detailing phase transitions and phase nature.
Findings
Multiple quantum phase transitions identified
Exact locations of transitions calculated
Different phases characterized
Abstract
We calculate the phase diagram of an integrable anisotropic 3-leg quantum spin tube connected to the su(8) algebra. We find several quantum phase transitions for antiferromagnetic rung couplings. Their locations are calculated exactly from the Bethe Ansatz solution and we discuss the nature of each of the different phases.
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