High temperature phase transition in the coupled atom-light system in the presence of optical collisions

Abstract

The problem of photonic phase transition for the system of a two-level atomic ensemble interacting with a quantized single-mode electromagnetic field in the presence of optical collisions (OC) is considered. We have shown that for large and negative atom-field detuning a photonic field exhibits high temperature second order phase transition to superradiant state under thermalization condition for coupled atom-light states. Such a transition can be connected with superfluid (coherent) properties of photon-like low branch (LB) polaritons. We discuss the application of metallic cylindrical waveguide for observing predicted effects.

8 pages, 2 figures

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Cited by in corpus (4)

• Solitons in cavity-QED arrays containing interacting qubits
• Nonlinear properties and stabilities of polaritonic crystals beyond the low-excitation-density limit
• One-dimensional Bose-Einstein condensation of photons in a microtube
• Lasing and high temperature phase transitions in atomic systems with dressed state polaritons