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Hong-Ou-Mandel interference of polarization qubits stored in independent room-temperature quantum memories by Gera, Sonali; Wallace, Chase; Flament, Mael; Scriminich, Alessia; Namazi, Mehdi; Kim, Youngshin; Sagona-Stophel, Steven; Vallone, Giuseppe; Villoresi, Paolo; Figueroa, Eden is a scholarly article available to read on EtoBox.

What is Hong-Ou-Mandel interference of polarization qubits stored in independent room-temperature quantum memories about?

Quantum repeater networks require independent quantum memories capable of storing and retrieving indistinguishable photons to perform high-repetition entanglement swapping operations. The ability to perform these coherent operations at room temperature is of prime importance to the realization of scalable quantum networks. We perform Hong-Ou-Mandel (HOM) interference between photonic polarization qubits stored and retrieved from two sets of independent room-temperature quantum memories. We show a steady improvement in memory parameters and visibilities, culminating in a high quantum memory HOM visibility of 43%, compared to the 48% no-memory limit of our set-up. These results lay the groundwork for future applications using large-scale memory-assisted quantum networks.

Author

Gera, Sonali; Wallace, Chase; Flament, Mael; Scriminich, Alessia; Namazi, Mehdi; Kim, Youngshin; Sagona-Stophel, Steven; Vallone, Giuseppe; Villoresi, Paolo; Figueroa, Eden

Published

2018

Language

EN