2007/10/26 by K. Surmacz, J. Nunn, F. C. Waldermann +4 · 1 citation
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1103/physreva.78.033806
arxiv created 2007/10/26 · arxiv updated 2009/12/01
We propose a method that enables efficient storage and retrieval of a photonic excitation stored in an ensemble quantum memory consisting of Lambda-type absorbers with non-zero Stokes shift. We show that this can be used to implement a multimode quantum memory storing multiple frequency-encoded qubits in a single ensemble, and allowing their selective retrieval. The read-out scheme applies to memory setups based on both electromagnetically-induced transparency and stimulated Raman scattering, and spatially separates the output signal field from the control fields.