Experimental generation of pseudo-bound-entanglement

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.040304· OSTI ID:21408545

Kampermann, Hermann; Bruss, Dagmar; Xinhua, Peng; Suter, Dieter ^[1]

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1. Institut fuer Theoretische Physik III, Heinrich-Heine-Universitaet Duesseldorf, D-40225 Duesseldorf (Germany)

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.

• OSTI ID: 21408545
• Journal Information: Physical Review. A, Vol. 81, Issue 4; Other Information: DOI: 10.1103/PhysRevA.81.040304; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
NUCLEAR MAGNETIC RESONANCE
QUANTUM ENTANGLEMENT
QUBITS
TOMOGRAPHY
DIAGNOSTIC TECHNIQUES
INFORMATION
MAGNETIC RESONANCE
QUANTUM INFORMATION
RESONANCE