Coherent population trapping in quantized light field

Abstract

A full quantum treatment of coherent population trapping (CPT) is given for a system of resonantly coupled atoms and electromagnetic field. We develop a regular analytical method of the construction of generalized dark states (GDS). It turns out that GDS do exist for all optical transitions $F_g\to F_e$, including bright transitions $F\to F+1$ and $F^{\prime \prime }\to F^{\prime \prime }$ with $F^{\prime \prime }$ a half-integer, for which the CPT effect is absent in a classical field. We propose an idea to use an optically thick medium with a transition $F^{\prime \prime }\to F^{\prime \prime }$ with $F^{\prime \prime }\ge 3/2$ a half-integer as a ''quantum filter'', which transmits only a quantum light.

revtex4, twocolumn, 6 pages, including 1 figure

References in corpus (2)

• Storage of light in atomic vapor
• A Systematic Formulation of Slow Polaritons in Atomic Gases

Cited by in corpus (4)

• Photon-Photon Interactions via Rydberg Blockade
• Dissipative Many-body Quantum Optics in Rydberg Media
• Generation of mesoscopic entangled states in a cavity coupled to an atomic ensemble
• Vector Cooper Pairs and Coherent-Population-Trapping-like States in Ensemble of Interacting Fermions