Coherent State Wave Function for Systems with Spin-Dependent Correlations

Autor:	S. A. Vitiello, J. W. Lawson, Stefano Fantoni, Kevin E. Schmidt
Rok vydání:	1997
Předmět:	Physics Hybrid Monte Carlo Commutator Spin states Quantum mechanics Quantum Monte Carlo Monte Carlo method General Physics and Astronomy Coherent states Wave function Spin-½
Zdroj:	Physical Review Letters. 78:1846-1849
ISSN:	1079-7114 0031-9007
Popis:	We propose a variational wave function which uses coherent states to represent the spin state of particles, and describes systems with spin-dependent correlations. Spin states are parametrized by a continuous variable that looks like a classical spin vector. Correlation operators are represented as simple integrals, without commutator terms, which can be evaluated using standard or Monte Carlo techniques. Explicit calculations on liquid {sup 3}He using our wave function give good agreement with standard methods. Applications to systems in condensed matter and nuclear physics are discussed. {copyright} {ital 1997} {ital The American Physical Society}
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::69e4bf857d2033b2ce2afcab3c8a7df3 https://doi.org/10.1103/physrevlett.78.1846 Zobrazit plný text záznamu