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Cyclical Quantum Memory for Photonic Qubits

T. B. Pittman·J. D. Franson
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Abstract

We have performed a proof-of-principle experiment in which qubits encoded in the polarization states of single-photons from a parametric down-conversion source were coherently stored and read-out from a quantum memory device. The memory device utilized a simple free-space storage loop, providing a cyclical read-out that could be synchronized with the cycle time of a quantum computer. The coherence of the photonic qubits was maintained during switching operations by using a high-speed polarizing Sagnac interferometer switch.

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T. B. Pittman, J. D. Franson. 2002-07-08. Cyclical Quantum Memory for Photonic Qubits. https://doi.org/10.1103/physreva.66.062302

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