Cyclical Quantum Memory for Photonic Qubits

Details Cyclical Quantum Memory for Photonic Qubits Cyclical Quantum Memory for Photonic Qubits

2002-07-08

arxiv.org/abs/quant-ph/0207041v1

Phys. Rev. A 66, 062302 (2002).

Physics

Quantum Physics

4 pages, 5 figures

Scientific paper

10.1103/PhysRevA.66.062302

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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