Cyclical quantum memory for photonic qubits
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Type of Work4 pages
Citation of Original PublicationT. B. Pittman and J. D. Franson, Cyclical quantum memory for photonic qubits, Phys. Rev. A 66, 062302, doi: https://doi.org/10.1103/PhysRevA.66.062302
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©2002 The American Physical Society
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 readout 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.