Broadband quantum memory in a cavity via zero spectral dispersion. (24th June 2021)

• Record Type: Journal Article
• Authors: Moiseev, E S; Tashchilina, Arina; Moiseev, S A; Sanders, Barry C
• Is Part Of: New journal of physics. Volume 23:Number 6(2021)
• Publication Date: 2021-06-24
• Subjects: quantum memory -- quantum repeater -- cavity QED; Physics -- Periodicals; Physics; Periodicals; 530.05
• DOI: 10.1088/1367-2630/ac0754
• Languages: English
• ISSNs: 1367-2630

Abstract

Abstract: We seek to design experimentally feasible broadband, temporally multiplexed optical quantum memory with near-term applications to telecom bands. Specifically, we devise dispersion compensation (DC) for an impedance-matched narrow-band quantum memory by exploiting Raman processes over two three-level atomic subensembles, one for memory and the other for DC. DC provides impedance matching over more than a full cavity linewidth. Combined with 1 s spin-coherence lifetime the memory could be capable of power efficiency exceeding 90% leading to 10 6 modes for temporal multiplexing. Our design could lead to significant multiplexing enhancement for quantum repeaters to be used for telecom quantum networks.