Entanglement and the quantum-to-classical transition
Journal Article
·
· Physical Review. A
- Institute for Quantum Information Science, University of Calgary, Alberta T2N 1N4 (Canada)
- Department of Physics and Astronomy, University of New Mexico, Albuquerque, New Mexico 87131 (United States)
We analyze the quantum-to-classical transition (QCT) for coupled bipartite quantum systems for which the position of one of the two subsystems is continuously monitored. We obtain the surprising result that the QCT can emerge concomitantly with the presence of highly entangled states in the bipartite system. Furthermore, the changing degree of entanglement is associated with the backaction of the measurement on the system and is itself an indicator of the QCT. Our analysis elucidates the role of entanglement in von Neumann's paradigm of quantum measurements comprised of a system and a monitored measurement apparatus.
- OSTI ID:
- 20718435
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 1 Vol. 72; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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