Published July 2010
| Version v1
Journal article
Evaluation of two different entanglement measures on a bound entangled state
- 1. Centre for Quantum Computer Technology, School of Mathematics and Physics, The University of Queensland, St. Lucia, QLD 4072 (Australia)
- 2. NUS Graduate School for Integrative Sciences and Engineering, Singapore 117597 (Singapore)
- 3. Centre for Quantum Technologies, National University of Singapore, Singapore 117543 (Singapore)
- 4. Department of Physics, National University of Singapore, Singapore 117542 (Singapore)
Description
We consider the mixed three-qubit bound entangled state defined as the normalized projector on the subspace that is complementary to an unextendible product basis [C. H. Bennett et al., Phys. Rev. Lett. 82, 5385 (1999)]. Using the fact that no product state lies in the support of that state, we compute its entanglement by providing a basis of its subspace formed by ''minimally entangled'' states. The approach is in principle applicable to any entanglement measure; here we provide explicit values for both the geometric measure of entanglement and a generalized concurrence.
Additional details
Identifiers
- DOI
- 10.1103/PhysRevA.82.012327;
- arXiv
- arXiv:1006.1152v1;
Publishing Information
- Journal Title
- Physical Review. A
- Journal Volume
- 82
- Journal Issue
- 1
- Journal Page Range
- p. 012327-012327.6
- ISSN
- 1050-2947
- CODEN
- PLRAAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 42036171
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- EVALUATION; GEOMETRY; QUANTUM ENTANGLEMENT; QUANTUM MECHANICS; QUANTUM STATES
- Descriptors DEC
- MATHEMATICS; MECHANICS
Optional Information
- Notes
- (c) 2010 The American Physical Society