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

Journal Article · Sun May 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.053802· OSTI ID:21546852

Alodjants, A P; Chestnov, I Yu; Arakelian, S M ^[1]

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1. Department of Physics and Applied Mathematics, Vladimir State University, Gorky str. 87, 600000, Vladimir (Russian Federation)

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 (OCs) 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 photonlike low branch (LB) polaritons. We discuss the application of metallic cylindrical waveguide for observing predicted effects.

• OSTI ID: 21546852
• Journal Information: Physical Review. A, Vol. 83, Issue 5; Other Information: DOI: 10.1103/PhysRevA.83.053802; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
CYLINDRICAL CONFIGURATION
ELECTROMAGNETIC FIELDS
PHASE TRANSFORMATIONS
PHOTON COLLISIONS
POLARONS
SUPERFLUIDITY
TEMPERATURE RANGE 0400-1000 K
THERMALIZATION
VISIBLE RADIATION
WAVEGUIDES
COLLISIONS
CONFIGURATION
ELECTROMAGNETIC RADIATION
QUASI PARTICLES
RADIATIONS
SLOWING-DOWN
TEMPERATURE RANGE