Quantum teleportation of composite systems via mixed entangled states

Somshubhro Bandyopadhyay, Barry C. Sanders

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)
1 Downloads (Pure)

Abstract

We analyze quantum teleportation for composite systems, specifically for concatenated teleporation (decomposing a large composite state into smaller states of dimension commensurate with the channel) and partial teleportation (teleporting one component of a larger quantum state). We obtain an exact expression for teleportation fidelity that depends solely on the dimension and singlet fraction for the entanglement channel and entanglement (measures by I concurrence) for the state; in fact quantum teleportation for composite systems provides an operational interpretation for I concurrence. In addition we obtain tight bounds on teleportation fidelity and prove that the average fidelity approaches the lower bound of teleportation fidelity in the high-dimension limit.
Original languageEnglish
Pages (from-to)032310-1-032310-10
Number of pages10
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume74
Issue number3
DOIs
Publication statusPublished - 2006

Bibliographical note

Copyright 2006 by The American Physical Society. Reprinted from Physical review A.

Keywords

  • teleportation
  • quantum entanglement

Fingerprint Dive into the research topics of 'Quantum teleportation of composite systems via mixed entangled states'. Together they form a unique fingerprint.

Cite this