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Quantum volume hologram

Journal Article · · Physical Review. A
;  [1];  [2]
  1. V. A. Fock Physics Institute, St. Petersburg State University, 198504 Petrodvorets, St. Petersburg (Russian Federation)
  2. QUANTOP, Danish Research Foundation Center for Quantum Optics, Niels Bohr Institute, DK-2100 Copenhagen (Denmark)
We propose a scheme for parallel spatially multimode quantum memory for light. The scheme is based on a counterpropagating quantum signal wave and a strong classical reference wave as in a classical volume hologram and therefore can be called a quantum volume hologram. The medium for the hologram consists of a spatially extended ensemble of atoms placed in a magnetic field. The write-in and readout of this quantum hologram is as simple as that of its classical counterpart and consists of a single-pass illumination. In addition, we show that the present scheme for a quantum hologram is less sensitive to diffraction and therefore is capable of achieving a higher density of storage of spatial modes as compared to previous proposals. We present a feasibility study and show that experimental implementation is possible with available cold atomic samples. A quantum hologram capable of storing entangled images can become an important ingredient in quantum information processing and quantum imaging.
OSTI ID:
21408161
Journal Information:
Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 81; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English