Entanglement amplification via local weak measurements
We propose a measurement-based method to produce a maximally-entangled state from a partially-entangled pure state. Our goal can be thought of as entanglement distillation from a single copy of a partially-entangled state. The present approach involves local two-outcome weak measurements. We show th...
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| Veröffentlicht in: | Journal of physics. A, Mathematical and theoretical Mathematical and theoretical, 2012-10, Vol.45 (41), p.415303-13 |
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| container_issue | 41 |
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| container_title | Journal of physics. A, Mathematical and theoretical |
| container_volume | 45 |
| creator | Ota, Yukihiro Ashhab, Sahel Nori, Franco |
| description | We propose a measurement-based method to produce a maximally-entangled state from a partially-entangled pure state. Our goal can be thought of as entanglement distillation from a single copy of a partially-entangled state. The present approach involves local two-outcome weak measurements. We show that the application of these local weak measurements leads to a probabilistic amplification of entanglement. In addition, we examine how the probability to find the maximally-entangled state is related to the entanglement of the input state. We also study the application of our method to a mixed initial state. We show that the protocol is successful if the separable part of the mixed initial state fulfils certain conditions. |
| doi_str_mv | 10.1088/1751-8113/45/41/415303 |
| format | Article |
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We show that the protocol is successful if the separable part of the mixed initial state fulfils certain conditions.</description><subject>Amplification</subject><subject>Distillation</subject><subject>Entanglement</subject><subject>Exact sciences and technology</subject><subject>Mathematical analysis</subject><subject>Physics</subject><subject>Probabilistic methods</subject><subject>Probability theory</subject><subject>Reproduction</subject><issn>1751-8113</issn><issn>1751-8121</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqFkEtLxDAUhYMoOI7-BelGcFMnN89mKcP4gAE3ug5pmkrGvkxaxX9vxg6zFQIJ5Dvn3nMQugZ8B7goViA55AUAXTG-YpAOp5ieoMXhg8Dp8Q30HF3EuMOYM6zIAolNN5ruvXGt68bMtEPja2_N6Psu-_Ima3prmuzbmY-sdSZO4Q-Ml-isNk10V4d7id4eNq_rp3z78vi8vt_mNtmPucS25KVRgpcgiK0o1EZVikvKAStp01ZFycFKBqKQhSIVpZLQpJCE8JLTJbqdfYfQf04ujrr10bqmMZ3rp6hBCFVwLBVLqJhRG_oYg6v1EHxrwo8GrPdF6X0Het-BZlwz0HNRSXhzmGFiClsH01kfj2oimJBC4sSRmfP9oHf9FLqU_D_zX35idUU</recordid><startdate>20121019</startdate><enddate>20121019</enddate><creator>Ota, Yukihiro</creator><creator>Ashhab, Sahel</creator><creator>Nori, Franco</creator><general>IOP Publishing</general><general>IOP</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20121019</creationdate><title>Entanglement amplification via local weak measurements</title><author>Ota, Yukihiro ; Ashhab, Sahel ; Nori, Franco</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c409t-70cb5ba965b162cd31fa9d957351097c1758b51c741687892d33723ba97225b53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Amplification</topic><topic>Distillation</topic><topic>Entanglement</topic><topic>Exact sciences and technology</topic><topic>Mathematical analysis</topic><topic>Physics</topic><topic>Probabilistic methods</topic><topic>Probability theory</topic><topic>Reproduction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ota, Yukihiro</creatorcontrib><creatorcontrib>Ashhab, Sahel</creatorcontrib><creatorcontrib>Nori, Franco</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of physics. 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| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link |
| subjects | Amplification Distillation Entanglement Exact sciences and technology Mathematical analysis Physics Probabilistic methods Probability theory Reproduction |
| title | Entanglement amplification via local weak measurements |
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