Quantum memory for light via stimulated off-resonant Raman process: beyond the three-level Lambda-scheme approximation
arXiv:1007.3391 · doi:10.1103/PhysRevA.82.033838
Abstract
We consider a quantum memory scheme based on the conversion of a signal pulse into a long-lived spin coherence via stimulated off-resonant Raman process. For a storing medium consisting of alkali atoms, we have calculated the Autler-Townes resonance structure created by a strong control field. By taking into account the upper hyperfine states of the D1 optical transition, we show important deviations from the predictions of the usual three-level Lambda-scheme approximation and we demonstrate an enhancement of the process for particular detunings of the control. We estimate the memory efficiency one can obtain using this configuration.
8 pages, 6 figures
References in corpus (19)
- The Quantum Internet
- Quantum interface between light and atomic ensembles
- Storage and retrieval of single photons transmitted between remote quantum memories
- Mapping photonic entanglement into and out of a quantum memory
- Quantum Memories. A Review based on the European Integrated Project "Qubit Applications (QAP)"
- Quantum memory for squeezed light
- Universal Approach to Optimal Photon Storage in Atomic Media
- Storage and Retrieval of a Squeezed Vacuum
- Photon storage in Lambda-type optically dense atomic media. II. Free-space model
- Optimal control of light pulse storage and retrieval
- Multimode Memories in Atomic Ensembles
- Photon echoes generated by reversing magnetic field gradients in a rubidium vapour
- Optimal light storage with full pulse shape control
- Photon storage in Lambda-type optically dense atomic media. III. Effects of inhomogeneous broadening
- Photon storage in Lambda-type optically dense atomic media. IV. Optimal control using gradient ascent
- Reversible Quantum Interface for Tunable Single-sideband Modulation
- Spectral theory of quantum memory and entanglement via Raman scattering of light by an atomic ensemble
- Entanglement fidelity of quantum memories
- Stimulated Raman process in a scattering medium in application to quantum memory scheme
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