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Opt Express. 2011 Aug 15;19(17):16309-16. doi: 10.1364/OE.19.016309.

Experimental demonstration of decoherence suppression via quantum measurement reversal.

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1
Department of Physics, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Korea.

Abstract

Taming decoherence is essential in realizing quantum computation and quantum communication. Here we experimentally demonstrate that decoherence due to amplitude damping can be suppressed by exploiting quantum measurement reversal in which a weak measurement and the reversing measurement are introduced before and after the decoherence channel, respectively. We have also investigated the trade-off relation between the degree of decoherence suppression and the channel transmittance.

PMID:
21934994
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