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Enhancing teleportation fidelity by means of weak measurements or reversal

Authors
Journal
Annals of Physics
0003-4916
Publisher
Elsevier
Identifiers
DOI: 10.1016/j.aop.2014.07.012
Keywords
  • Teleportation
  • Amplitude Damping Channel
  • Weak Measurement
  • Quantum Measurement Reversal
Disciplines
  • Physics

Abstract

Abstract The enhancement of teleportation fidelity by weak measurement or quantum measurement reversal is investigated. One qubit of a maximally entangled state undergoes the amplitude damping, and the subsequent application of weak measurement or quantum measurement reversal could improve the teleportation fidelity beyond the classical region. The improvement could not be attributed to the increasing of entanglement, quantum discord, classical correlation or total correlation. We declare that it should be owed to the probabilistic nature of the method.

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