Thermodynamics and dynamics of spin systems in the phase transition to the superradiant state
Teoretičeskaâ i matematičeskaâ fizika, Tome 33 (1977) no. 1, pp. 95-109
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Phase transition to the superradiance (spontaneous coherent) state in the system
of classical spins interacting with resonance field is investigated. Thermodynamic properties
of the system are determined by means of the exact calculation of the partition
function. It is shown that the coherent state of the spins arisses below the transition
point. Dynamical susceptibility of the system near to and far from the transition
point is found in the case of the uniform field by means of averaging the exact solution
of the equations of motion. It is shown that in the region far from the transition
point the width of the spectrum is getting anomalously large and is determined, on
the whole, by the constant of coupling of spins with the field.
@article{TMF_1977_33_1_a7,
author = {G. M. Zaslavsky and Yu. A. Kudenko and A. P. Slivinskii},
title = {Thermodynamics and dynamics of spin systems in the phase transition to the superradiant state},
journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
pages = {95--109},
publisher = {mathdoc},
volume = {33},
number = {1},
year = {1977},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/TMF_1977_33_1_a7/}
}
TY - JOUR AU - G. M. Zaslavsky AU - Yu. A. Kudenko AU - A. P. Slivinskii TI - Thermodynamics and dynamics of spin systems in the phase transition to the superradiant state JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1977 SP - 95 EP - 109 VL - 33 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1977_33_1_a7/ LA - ru ID - TMF_1977_33_1_a7 ER -
%0 Journal Article %A G. M. Zaslavsky %A Yu. A. Kudenko %A A. P. Slivinskii %T Thermodynamics and dynamics of spin systems in the phase transition to the superradiant state %J Teoretičeskaâ i matematičeskaâ fizika %D 1977 %P 95-109 %V 33 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1977_33_1_a7/ %G ru %F TMF_1977_33_1_a7
G. M. Zaslavsky; Yu. A. Kudenko; A. P. Slivinskii. Thermodynamics and dynamics of spin systems in the phase transition to the superradiant state. Teoretičeskaâ i matematičeskaâ fizika, Tome 33 (1977) no. 1, pp. 95-109. http://geodesic.mathdoc.fr/item/TMF_1977_33_1_a7/