Quantum Communications with Compressed Decoherence Using Bright Squeezed Light

Details Quantum Communications with Compressed Decoherence Using Bright Squeezed Light Quantum Communications with Compressed Decoherence Using Bright Squeezed Light

2008-10-11

arxiv.org/abs/0810.2013v1

J. Mod. Optic. 55 (No.17), 2731 (2008)

Physics

Quantum Physics

4 pages, 2 figures

Scientific paper

10.1080/09500340802220737

We propose a scheme for long-distance distribution of quantum entanglement in which the entanglement between qubits at intermediate stations of the channel is established by using bright light pulses in squeezed states coupled to the qubits in cavities with a weak dispersive interaction. The fidelity of the entanglement between qubits at the neighbor stations (10 km apart from each other) obtained by postselection through the balanced homodyne detection of 7 dB squeezed pulses can reach F=0.99 without using entanglement purification, at same time, the probability of successful generation of entanglement is 0.34.

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