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Studying the thermally entangled state of a three-qubit Heisenberg XX ring via quantum teleportation

Journal Article · · Physical Review. A
 [1]
  1. Centre for Mathematical Sciences, Wilberforce Road, Cambridge CB3 0WB, (United Kingdom)
We consider quantum teleportation as a tool to investigate the thermally entangled state of a three-qubit Heisenberg XX ring. Our investigation reveals interesting aspects of quantum entanglement not reflected by the pairwise thermal concurrence of the state. In particular, two mixtures of different pairs of W states, which result in the same concurrence, could yield very different average teleportation fidelities.
OSTI ID:
20640032
Journal Information:
Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 68; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English

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