Transfer of a Polaritonic Qubit through a Coupled Cavity Array

Details Transfer of a Polaritonic Qubit through a Coupled Cavity Array Transfer of a Polaritonic Qubit through a Coupled Cavity Array

2007-04-09

arxiv.org/abs/0704.0984v1

Journ. of Mod. Opt. vol. 54, 2307 (2007)

Physics

Quantum Physics

Contribution to Special Issue in Journal of Modern Optics celebrating the 60th birthday of Peter L. Knight

Scientific paper

We demonstrate a scheme for quantum communication between the ends of an array of coupled cavities. Each cavity is doped with a single two level system (atoms or quantum dots) and the detuning of the atomic level spacing and photonic frequency is appropriately tuned to achieve photon blockade in the array. We show that in such a regime, the array can simulate a dual rail quantum state transfer protocol where the arrival of quantum information at the receiving cavity is heralded through a fluorescence measurement. Communication is also possible between any pair of cavities of a network of connected cavities.

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