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Nature Physics 4, 909 - 910 (2008)
doi:10.1038/nphys1145
Subject Categories: Quantum physics | Optical physics
Entanglement distillation: Pick the best and ignore the rest
Hans-Albert Bachor1
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Hans-Albert Bachor is at the Australian Centre of Excellence for Quantum–Atom Optics, Canberra, ACT 0200, Australia.
e-mail: hans.bachor@anu.edu.au
Abstract
Entanglement is precious, allowing us to perform all kinds of quantum tricks. But it is easily buried under technical noise. Two experiments show how to distil the 'good parts' from a data stream and recover high-quality entanglement.
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RESEARCH
Two independent experiments demonstrate that quantum entanglement that has been lost in decoherence processes can be recovered. For the first time such ?entanglement distillation? has been achieved for states of light that are entangled in continuous variables, which should help to increase the distance over which quantum information can be distributed. Two independent experiments demonstrate that quantum entanglement that has been lost in decoherence processes can be recovered. For the first time such ?entanglement distillation? has been achieved for states of light that are entangled in continuous variables, which should help to increase the distance over which quantum information can be distributed. Measured Gaussian LN before and after distillation and the corresponding success rates.Nature Physics Letter (01 Dec 2008)
Two independent experiments demonstrate that quantum entanglement that has been lost in decoherence processes can be recovered. For the first time such ?entanglement distillation? has been achieved for states of light that are entangled in continuous variables, which should help to increase the distance over which quantum information can be distributed. Two independent experiments demonstrate that quantum entanglement that has been lost in decoherence processes can be recovered. For the first time such ?entanglement distillation? has been achieved for states of light that are entangled in continuous variables, which should help to increase the distance over which quantum information can be distributed.Nature Physics Letter (01 Dec 2008)
Supplementary InformationNature Physics Article (01 Sep 2008)
Supplementary InformationNature Physics Letter (01 Aug 2009)
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