Photon echo quantum memory with complete use of natural inhomogeneous broadening
arXiv:1011.1934 · doi:10.1103/PhysRevA.83.012307
Abstract
The photon echo quantum memory is based on a controlled rephasing of the atomic coherence excited by signal light field in the inhomogeneously broadened resonant line. Here, we propose a novel active mechanism of the atomic rephasing which provides a perfect retrieval of the stored light field in the photon echo quantum memory for arbitrary initial inhomogeneous broadening of the resonant line. It is shown that the rephasing mechanism can exploit all resonant atoms which maximally increases an optical depth of the resonant transition that is one of the critical parameters for realization of highly efficient quantum memory. We also demonstrate that the rephasing mechanism can be used for various realizations of the photon echo quantum memory that opens a wide road for its practical realization.
6 pages, 4 figures
References in corpus (14)
- The Quantum Internet
- Experimental demonstration of quantum memory for light
- Quantum Repeaters with Photon Pair Sources and Multi-Mode Memories
- Mapping photonic entanglement into and out of a quantum memory
- Quantum Storage of Photonic Entanglement in a Crystal
- Quantum Memories. A Review based on the European Integrated Project "Qubit Applications (QAP)"
- Quantum memory for squeezed light
- Towards high-speed optical quantum memories
- Mapping multiple photonic qubits into and out of one solid-state atomic ensemble
- Multimode Memories in Atomic Ensembles
- Efficient multi-mode quantum memory based on photon echo in optimal QED cavity
- Photon echoes generated by reversing magnetic field gradients in a rubidium vapour
- Temporal compression of quantum information-carrying photons using a photon-echo quantum memory approach
- Quantum interface between frequency-uncorrelated down-converted entanglement and atomic-ensemble quantum memory
Cited by in corpus (5)
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- Adiabatic passage in photon-echo quantum memories
- Room temperature caesium quantum memory for quantum information applications