Quantum hologram of macroscopically entangled light via the mechanism of diffuse light storage

Abstract

In the present paper we consider a quantum memory scheme for light diffusely propagating through a spatially disordered atomic gas. The diffuse trapping of the signal light pulse can be naturally integrated with the mechanism of stimulated Raman conversion into a long-lived spin coherence. Then the quantum state of the light can be mapped onto the disordered atomic spin subsystem and can be stored in it for a relatively long time. The proposed memory scheme can be applicable for storage of the macroscopic analog of the ${\Psi }^{(-)}$ Bell state and the prepared entangled atomic state performs its quantum hologram, which suggests the possibility of further quantum information processing.

Submitted to Journal of Physics B: Atomic, Molecular and Optical Physics. Special Issue on Quantum Memories

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Cited by in corpus (6)

• Coherence properties of high-gain twin beams generated in pump-depletion regime
• Mesoscopic coherence in light scattering from cold, optically dense and disordered atomic systems
• Three-dimensional Quantum Polarization Tomography of Macroscopic Bell States
• Filtering of the absolute value of photon-number difference for two-mode macroscopic quantum superpositions
• Cooperative light scattering on an atomic system with degenerate structure of the ground state
• Raman process under condition of radiation trapping in a disordered atomic medium