Continuous variable teleportation as a quantum channel

M. Takeoka, M. Sasaki, M. Ban

Research output: Contribution to journalArticlepeer-review


A quantum channel consisting of continuous variable quantum teleportation based on the standard protocol is investigated. It is shown that a quantum channel for continuous variable teleportation by an aribitrary entangled state is equivalent to a generalized thermalizing channel. We also study the transmission of nonclassical states by a teleportation channel with a two-mode squeezed-vacuum state in a noisy environment. The transmisson performance is evaluated by using the Glauber-Sudarshan P function and the nonclassical depth. Finally, we compare the results obtained to those of a noisy direct transmission channel. It is shown that the teleportation channel performs better than the direct transmission channel in a certain region.

Original languageEnglish
Pages (from-to)675-683
Number of pages9
JournalOptics and Spectroscopy (English translation of Optika i Spektroskopiya)
Issue number5
Publication statusPublished - 2003 May
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics


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