Quantum interference of electromagnetic fields from remote quantum memories
T. Chaneliere, D. N. Matsukevich, S. D. Jenkins, S. -Y. Lan, R. Zhao, T. A. B. Kennedy, A. Kuzmich
Abstract
We observe quantum, Hong-Ou-Mandel, interference of fields produced by two remote atomic memories. High-visibility interference is obtained by utilizing the finite atomic memory time in four-photon delayed coincidence measurements. Interference of fields from remote atomic memories is a crucial element in protocols for scalable generation of multi-node remote qubit entanglement.
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