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 (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 106 modes for temporal multiplexing. Our design could lead to significant multiplexing enhancement for quantum repeaters to be used for telecom quantum networks.

Тип публикации
New Journal of Physics
Евгений Моисеев
Евгений Моисеев

My research interests include quantum networks, light storage, light-matter interaction. At spare time, I enjoy electronics, free and open source software.

Сергей Моисеев
Сергей Моисеев

My research interests include quantum memories, Light-matter interaction, quantum information processing