Spin systems, spin coherent states and quasi-exactly solvable models

V. V. Ulyanov; O. B. Zaslavskii

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arXiv · quant-ph/9902058

Spin systems, spin coherent states and quasi-exactly solvable models

V. V. Ulyanov·O. B. Zaslavskii

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Abstract

Spin coherent states play a crucial role in defining QESM (quasi-exactly solvable models) establishing a strict correspondence between energy spectra of spin systems and low-lying quantum states for a particle moving in a potential field of a certain form. Spin coherent states are also used for finding the Wigner-Kirkwood expansion and quantum corrections to energy quantization rules. The closed equation which governs dynamics of a quantum system is obtained in the spin coherent representation directly for observable quantities.

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V. V. Ulyanov, O. B. Zaslavskii. 1999-02-16. Spin systems, spin coherent states and quasi-exactly solvable models. https://arxiv.org/abs/quant-ph/9902058

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