Coherent control of collective spontaneous emission in an extended atomic ensemble and quantum storage

Abstract

Coherent control of collective spontaneous emission in an extended atomic ensemble resonantly interacting with single-photon wave packets is analyzed. A scheme for coherent manipulation of collective atomic states is developed such that superradiant states of the atomic system can be converted into subradiant ones and vice versa. Possible applications of such a scheme for optical quantum state storage and single-photon wave packet shaping are discussed. It is shown that also in the absence of inhomogeneous broadening of the resonant line, single-photon wave packets with arbitrary pulse shape may be recorded as a subradiant state and reconstructed even although the duration of the wave packets is larger than the superradiant life-time. Specifically the applicability for storing time-bin qubits, which are used in quantum cryptography is analyzed.

11 pages, 4 figures, submitted to PRA

References in corpus (10)

• Quantum Cryptography
• Quantum information with continuous variables
• Long-distance quantum communication with atomic ensembles and linear optics
• Experimental demonstration of quantum memory for light
• Storage and retrieval of single photons transmitted between remote quantum memories
• Quantum memory for non-stationary light fields based on controlled reversible inhomogeneous broadening
• Advanced holeburning techniques for determination of hyperfine transition properties in inhomogeneously broadened solids applied to Pr3+:Y2SiO5
• Shaping quantum pulses of light via coherent atomic memory
• Inhibition of Decoherence due to Decay in a Continuum
• Initial experiments concerning quantum information processing in rare-earth-ion doped crystals

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• Effect of atomic distribution on cooperative spontaneous emission
• Quantum storage on subradiant states in an extended atomic ensemble
• Vacuum fluctuations and radiation reaction contributions to the resonance dipole-dipole interaction between two atoms near a reflecting boundary
• Quantum storage via refractive index control
• Quantum memory for light using extended atomic ensembles in a tunable cavity
• Interaction-free evolving states of a bipartite system
• Dike states in multiple quantum dots
• Universal Control of Symmetric States Using Spin Squeezing
• Quantum Light on Demand
• Transformation of subradiant state to superradiant state in a thick resonant medium
• Solid state multi-ensemble quantum computer in waveguide circuit model
• Decoherence and collective effects in critical media
• Backward retrieval in optical quantum memory controlled by an external field
• How to describe collective decay of uncoupled modes in the input-output formalism
• Universal trapping law induced by atomic cloud in single-photon cooperative dynamics
• Quantum computer of wire circuit architecture