Phase Transition Analogies: Magnets, Lasers and Fluid Flows
One of the early developments of the quantum theory of a laser vas the uncovering of a striking similarity between the behavior of a laser around threshold and a second-order phase transition such as the order-disorder transitions of ferromagnetic and superfluid systems /1, 2/. The analogy was soon extended to a variety of phenomena in quantum optics, such as the symmetry broken laser (laser with injected signal /1 /, lasers with saturable absorbers /3 /, optical bistability /4/and transient processes such as superfluorescence. Recently, the analogy has been extended in a bold though useful approach to hydrodynamic instabilities /5–8/. Such studies provided useful insights into the statistical mechanics of systems operating far from thermodynamic equilibrium and permitted the uncovering of fascinating phenomena in otherwise unrelated fields.
KeywordsSaturable Absorber Hydrodynamic Instability Cooperative Phenomenon Fascinating Phenomenon Original Minimum
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- 6.V. Degiorgio, Phys. Today, October issue, 42 (1976)Google Scholar
- 9.P. C. Martin, in Low Temperature Physics, edited by J. G. Daunt, D.O. Edwards, F.J. Milford, and M. Yaqub (Plenum, N. York, 1965) p. 9.Google Scholar
- 21.P. Glansdorff and I. Prigogine, Thermodynamics of Structure, Stability and Fluctuations (Wiley, N.York, 1971). See also G. Nicolis and I. Prigogine, Self-organization in Nonequilib-rium Systems (Wiley, N. York, 1977).Google Scholar