Constructs PT-symmetric integrable spin-1/2 Richardson-Gaudin models via complex deformations, derives the metric operator for the physical inner product, and gives exact spin dynamics in unbroken and broken PT phases.
(11) Here, the coupling terms exhibit oscillatory behavior, which is characteristic of systems with periodic boundary conditions or angular coordinates
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Parity-Time Symmetric Spin-1/2 Richardson-Gaudin Models
Constructs PT-symmetric integrable spin-1/2 Richardson-Gaudin models via complex deformations, derives the metric operator for the physical inner product, and gives exact spin dynamics in unbroken and broken PT phases.