Electronic Resource
Springer
Journal of statistical physics
18 (1978), S. 207-215
ISSN:
1572-9613
Keywords:
Equilibrium superradiance
;
Bose condensation
;
liquid helium-4
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract A model of free4He atoms interacting with radiation exhibits an equilibrium phase transition in which the atomic ground-state Bose condensation is coupled to condensations of virtual photons and virtually excited atoms of the same macroscopic wavelength. The condensed phase has a twofold polarization degeneracy. It is suggested that this might furnish a mechanism for a discrete symmetry-related phase degeneracy of superfluid liquid4He required to explain the λ transition according to Tisza's generalized Gibbsian thermodynamics. A more realistic model would require inclusion of repulsive interactions.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01014311
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