Quantum interference of electromagnetic fields from remote quantum memories
arXiv:quant-ph/0609215 · doi:10.1103/PhysRevLett.98.113602
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.
4 pages, 3 figures