Atomic quantum memory for multimode frequency combs

Abstract

We propose a Raman quantum memory scheme that uses several atomic ensembles\nto store and retrieve the multimode highly entangled state of an optical\nquantum frequency comb, such as the one produced by parametric down-conversion\nof a pump frequency comb. We analyse the efficiency and the fidelity of such a\nquantum memory. Results show that our proposal may be helpful to multimode\ninformation processing using the different frequency bands of an optical\nfrequency comb.\n