Published April 2010
| Version v1
Journal article
Experimental generation of pseudo-bound-entanglement
- 1. Experimentelle Physik IIIa, Technische Universitaet Dortmund, D-44221 Dortmund (Germany)
- 2. Experimentelle Physik IIIa, Technische Universitaet Dortmund, D-44221 Dortmund (Germany) and Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026 (China)
- 3. Institut fuer Theoretische Physik III, Heinrich-Heine-Universitaet Duesseldorf, D-40225 Duesseldorf (Germany)
Description
We use nuclear magnetic resonance to experimentally generate a bound-entangled (more precisely: pseudo-bound-entangled) state, i.e., a quantum state which is nondistillable but nevertheless entangled. Our quantum system consists of three qubits. We characterize the produced state via state tomography to show that the created state has a positive partial transposition with respect to any bipartite splitting, and we use a witness operator to prove its pseudoentanglement.
Additional details
Identifiers
- DOI
- 10.1103/PhysRevA.81.040304;
- arXiv
- arXiv:0909.2743v1;
Publishing Information
- Journal Title
- Physical Review. A
- Journal Volume
- 81
- Journal Issue
- 4
- Journal Page Range
- p. 040304-040304.4
- ISSN
- 1050-2947
- CODEN
- PLRAAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 42001706
- Subject category
- S74: ATOMIC AND MOLECULAR PHYSICS;
- Descriptors DEI
- NUCLEAR MAGNETIC RESONANCE; QUANTUM ENTANGLEMENT; QUBITS; TOMOGRAPHY
- Descriptors DEC
- DIAGNOSTIC TECHNIQUES; INFORMATION; MAGNETIC RESONANCE; QUANTUM INFORMATION; RESONANCE
Optional Information
- Notes
- (c) 2010 The American Physical Society