Specificity of Phase Transition of Quasi-Spin System in Two-Quantum Exchange with Thermostat

Enaki, N.; Eremeev, V.

Keywords: phase transition, critical temperature, Two-quantum interaction, Quasi-spin system

Abstract

The quantum phase transition of the system of N radiators in case of two-photon exchange interaction with cavity electromagnetic field is considered. It is shown that for this system the atom-field exchange integral increases with the increase of temperature. This effect generates peculiarities in phase transition picture. The process of non-linear exchange between the quasi-spins leads to the increase of critical temperature as compared to traditional second order phase transition of quasi-spin system.

Más información

Título de la Revista: Physics Letters A
Volumen: 357
Número: 2
Editorial: Elsevier
Fecha de publicación: 2006
Página de inicio: 104
Página final: 107
Idioma: english
DOI:

http://dx.doi.org/10.1016/j.physleta.2006.04.029

Notas: ISI, SCOPUS