Quantum Memory Process with a Four-Level Atomic Ensemble

Abstract

We examine in detail the quantum memory technique for photons in a double $\Lambda$ atomic ensemble in this work. The novel application of the present technique to create two different quantum probe fields as well as entangled states of them is proposed. A larger zero-degeneracy class besides dark-state subspace is investigated and the adiabatic condition is confirmed in the present model. We extend the single-mode quantum memory technique to the case with multi-mode probe fields, and reveal the exact pulse matching phenomenon between two quantized pulses in the present system.

7 pages, 1 figure, to appear in Euro. Phys. J. D

References in corpus (5)

• Stationary pulses of light in an atomic medium
• Quantum State Transfer Between Matter and Light
• Quasi-spin wave quantum memories with dynamic symmetry
• Decoherence in collective quantum memories for photons
• Technique of quantum state transfer for a double Lambda atomic beam

Cited by in corpus (5)

• Beam splitting and Hong-Ou-Mandel interference for stored light
• Generation of frequency multiplexed entangled single photons assisted by the entanglement
• Photons as quasi-charged particles
• Tightly Localized Stationary Pulses in Multi-Level Atomic System
• Non-separated states from squeezed dark-state polaritons in electromagnetically-induced-transparency media