Asymmetric quantum channel for quantum teleportation

Myung Kim

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


We propose an optimal strategy for continuous-variable teleportation in a realistic situation. We show that the typical imperfect quantum operation can be described as a combination of an asymmetrically decohered quantum channel and perfect apparatuses for other operations. For the asymmetrically decohered quantum channel, we find some counterintuitive results: teleportation does not necessarily get better as the channel is initially squeezed more. We show that decoherence-assisted measurement and transformation may enhance fidelity for an asymmetrically mixed quantum channel.
Original languageEnglish
Pages (from-to)012309
Number of pages1
JournalPhysical Review A
Issue number1
Publication statusPublished - Jul 2001

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy(all)

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