Superradiant laser: First-order phase transition and non-stationary regime
Fachbereich Physik der Universität-GH Essen, 45117 Essen, Germany
2 Centrum Fizyki Teoretycznej PAN and College of Science, Al. Lotników 32/46, 02-668 Warszawa, Poland
Accepted: 19 October 1998
Published online: 15 March 1999
We solve the superradiant laser model in two limiting cases. First the stationary low-pumping regime is considered where a first-order phase transition in the semiclassical solution occurs. This discontinuity is smeared out in the quantum regime. Second, we solve the model in the non-stationary regime where we find a temporally periodic solution. For a certain parameter range well-separated pulses may occur.
PACS: 42.50.-p – Quantum optics / 42.50.Fx – Cooperative phenomena; superradiance and superfluorescence / 42.50.Lc – Quantum fluctuations, quantum noise, and quantum jumps
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1999