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      Inseparability Criterion for Continuous Variable Systems

      Author(s): , , ,
      Publication date (Electronic):
      Journal: Physical Review Letters
      Publisher: American Physical Society (APS)

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          Abstract

          An inseparability criterion based on the total variance of a pair of Einstein-Podolsky-Rosen type operators is proposed for continuous variable systems. The criterion provides a sufficient condition for entanglement of any two-party continuous variable states. Furthermore, for all Gaussian states, this criterion turns out to be a necessary and sufficient condition for inseparability.

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          Unconditional quantum teleportation

          Furusawa, Sorensen, Braunstein … (1998)
          Quantum teleportation of optical coherent states was demonstrated experimentally using squeezed-state entanglement. The quantum nature of the achieved teleportation was verified by the experimentally determined fidelity Fexp = 0.58 +/- 0.02, which describes the match between input and output states. A fidelity greater than 0.5 is not possible for coherent states without the use of entanglement. This is the first realization of unconditional quantum teleportation where every state entering the device is actually teleported.
          Article 0 comments Cited 801 times – based on 0 reviews     Review now
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            Separability Criterion for Density Matrices

            Asher Peres (1996)
            Article 0 comments Cited 632 times – based on 0 reviews     Review now
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              Separability of mixed states: necessary and sufficient conditions

              Michał Horodecki, Paweł Horodecki, Ryszard Horodecki (1996)
              Article 0 comments Cited 527 times – based on 0 reviews     Review now
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                Author and article information

                Journal
                Journal ID (publisher-id): PRLTAO
                Title: Physical Review Letters
                Abbreviated Title: Phys. Rev. Lett.
                Publisher: American Physical Society (APS)
                ISSN (Print): 0031-9007
                ISSN (Electronic): 1079-7114
                Publication date Created: March 2000
                Publication date (Electronic): March 20 2000
                Volume: 84
                Issue: 12
                Pages: 2722-2725
                Article
                DOI: 10.1103/PhysRevLett.84.2722
                PubMed ID: 11017309
                SO-VID: 86df3c53-afaa-4e75-aeab-1f7755062cd9
                Copyright © © 2000
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                http://link.aps.org/licenses/aps-default-license

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