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Restoration of quantum states after measurements

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Abstract.

 We discuss possibilities of protecting quantum states against disturbances introduced by quantum measurements. We specify conditions under which it is possible to restore an unknown state of a combined quantum system after measurements which were performed on some (but not on all) of its components.

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Authors and Affiliations

  1. Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, UK, , , , , , GB

    A. Ekert & C. Macchiavello

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  1. A. Ekert
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  2. C. Macchiavello
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Received: 3 April 1996/Revised version: 5 July 1996

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Ekert, A., Macchiavello, C. Restoration of quantum states after measurements. Appl Phys B 64, 125–127 (1997). https://doi.org/10.1007/s003400050155

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  • DOI: https://doi.org/10.1007/s003400050155

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