Journal of Modern Optics

Quantum teleportation and entanglement swapping viewed from different moving frames

Luiz Carlos Ryff

Published Apr 1, 2001• 1 citation

Abstract

It is shown that quantum teleportation and entanglement swapping can be easily derived from Einstein, Podolsky and Rosen correlations and special relativity (SR). A recent proposal of entanglement swapping via delayed-choice experiment is discussed by means of a concrete example. Experiments in decoherence in high-Q cavities are briefly examined from the point of view of SR. It is argued that although decoherence can explain why we never see a Schrödinger ‘cat’ which is dead and alive at the same time, this approach apparently does little to explain the cat's ‘real’ state.

DOI: 10.1080/09500340010017424

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