Calculation of tunnel splitting in a biaxial spin particle without instanton technique

Citation
B. Zhou et al., Calculation of tunnel splitting in a biaxial spin particle without instanton technique, PHYS LETT A, 278(1-2), 2000, pp. 95-98
Citations number
15
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS A
ISSN journal
0375-9601 → ACNP
Volume
278
Issue
1-2
Year of publication
2000
Pages
95 - 98
Database
ISI
SICI code
0375-9601(200012)278:1-2<95:COTSIA>2.0.ZU;2-Z
Abstract
The level splitting formulae of excited states as well as ground state for a biaxial spin particle are derived from those of eigenvalues of Schrodinge r equation (with periodic boundary conditions) which is obtained in terms o f a quantum treatment of spin, i.e., the potential field description of qua ntum spin systems, developed by Ulyanov and Zaslavskii. The results obtaine d are compared with those previously derived by complicated pseudoparticle methods. (C) 2000 Elsevier Science B.V. All rights reserved.