Appearance of collective polarisation as a result of phase transition in an ensemble of two-level atoms, interacting through electromagnetic field
Abstract
It is shown that in equilibrium system of two-level atoms, interacting through electromagnetic field, the phase transition, consisting in spontaneous appearance of static macroscopic polarisation is possible. It occurs only if acting on the atom field is different from Maxwell one.
- Publication:
-
Physics Letters A
- Pub Date:
- December 1976
- DOI:
- 10.1016/0375-9601(76)90411-4
- Bibcode:
- 1976PhLA...59..366E