Entanglement of projection and a new class of quantum erasers
- BNL Theory Group, Building 510a, Brookhaven National Laboratory, Upton, New York 11973 (United States)
- Clarendon Laboratory, Oxford OX1 3PU (England)
We define a new measurement of entanglement, the entanglement of projection, and find that it is natural to write the entanglements of formation and assistance in terms of it. Our measure allows us to describe a new class of quantum erasers which restore entanglement rather than just interference. Such erasers can be implemented with simple quantum computer components. We propose realistic optical versions of these erasers. {copyright} {ital 1999} {ital The American Physical Society}
- OSTI ID:
- 357287
- Journal Information:
- Physical Review A, Journal Name: Physical Review A Journal Issue: 2 Vol. 60; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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