7-2 continuous variable teleportation of non-classical states in noisy environment

Masahiro Takeoka, Masashi Ban, Masahide Sasaki

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Transmission of nonclassical quantum states by quantum teleportation of continuous variables is studied. Protocol of quantum teleportation via a two-mode squeezed-vacuum state in a noisy environment is formulated by the Glauber-Sudarshan P-function. Using the nonclassical depth as an estimation parameter of transmission performance, we compare the teleportation scheme with the direct transmission through a noisy channel. The noise model is based on the coupling to the vacuum field. We find that the teleportation channel has better transmission performance than the direct transmission channel in a certain region. The bounds for such region and for obtaining the nonvanished nonclassicality of the teleported quantum states are also discussed. We also mention the required conditions for transmitting nonclassical features in real experiments.

Original languageEnglish
Pages (from-to)119-127
Number of pages9
JournalJournal of the Communications Research Laboratory
Volume49
Issue number1
Publication statusPublished - 2002 Mar
Externally publishedYes

Keywords

  • Continuous variable
  • Non-classical depth
  • Quantum teleportation
  • Two-mode squeezed-vacuum

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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