Deterministic polarization-entanglement purification using spatial entanglement

Details Deterministic polarization-entanglement purification using spatial entanglement Deterministic polarization-entanglement purification using spatial entanglement

2010-10-26

arxiv.org/abs/1010.5301v1

Physical Review A 82, 044304 (2010)

Physics

Quantum Physics

4pages,1 figure

Scientific paper

10.1103/PhysRevA.82.044304

We present an efficient entanglement purification protocol with hyperentanglement in which additional spatial entanglement is utilized to purify the two-particle polarization-entangled state. The bit-flip error and phase-flip error can be corrected and eliminated in one step. Two remote parties can obtainmaximally entangled polarization states deterministically and only passive linear optics are employed. We also discuss the protocol with practical quantum source and noisy channel.

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