Multiplexed storage and real-time manipulation based on a multiple degree-of-freedom quantum memory.

ABSTRACT: The faithful storage and coherent manipulation of quantum states with matter-systems would enable the realization of large-scale quantum networks based on quantum repeaters. To achieve useful communication rates, highly multimode quantum memories are required to construct a multiplexed quantum repeater. Here, we present a demonstration of on-demand storage of orbital-angular-momentum states with weak coherent pulses at the single-photon-level in a rare-earth-ion-doped crystal. Through the combination of this spatial degree-of-freedom (DOF) with temporal and spectral degrees of freedom, we create a multiple-DOF memory with high multimode capacity. This device can serve as a quantum mode converter with high fidelity, which is a fundamental requirement for the construction of a multiplexed qu

SUBMITTER: Yang TS 

PROVIDER: S-EPMC6109076 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature