Spin systems, spin coherent states and quasi-exactly solvable models
Quantum Physics
2007-05-23 v1 Condensed Matter
High Energy Physics - Theory
Mathematical Physics
math.MP
Representation Theory
Spectral Theory
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.
Keywords
Cite
@article{arxiv.quant-ph/9902058,
title = {Spin systems, spin coherent states and quasi-exactly solvable models},
author = {V. V. Ulyanov and O. B. Zaslavskii},
journal= {arXiv preprint arXiv:quant-ph/9902058},
year = {2007}
}
Comments
7 pages, RevTex 3.0. Talk given at the 22nd International Colloqium for Group Theoretical Methods in Physics