Broadband quantum memory in a cavity via zero spectral dispersion

We seek to design experimentally feasible broadband, temporally multiplexed optical quantum memory with near-term applications to telecom bands. Specifically, we devise dispersion compensation for an impedance-matched narrow-band quantum memory by exploiting Raman processes over two three-level atom...

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Bibliographic Details
Published in:arXiv.org 2021-06
Main Authors: Moiseev, E S, Tashchilina, Arina, Moiseev, S A, Sanders, Barry C
Format: Article
Language:English
Subjects:
Broadband
Compensation
Dispersion
Impedance matching
Multiplexing
Optical memory (data storage)
Power efficiency
Quantum phenomena
Repeaters
Telecommunications
Online Access:Get full text
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Summary:We seek to design experimentally feasible broadband, temporally multiplexed optical quantum memory with near-term applications to telecom bands. Specifically, we devise dispersion compensation 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 dispersion compensation. Dispersion compensation provides impedance matching over more than a full cavity linewidth. Combined with one second spin-coherence lifetime the memory could be capable of power efficiency exceeding 90% leading to 106 modes for temporal multiplexing. Our design could lead to significant multiplexing enhancement for quantum repeaters to be used for telecom quantum networks.
ISSN:2331-8422
DOI:10.48550/arxiv.2106.15857