منابع مشابه
Bell-states diagonal relativistic multispinor entanglement witnesses in arbitrary dimensions
Two kinds of Bell-states diagonal relativistic multispinor entanglement witnesses (EW) are constructed by using the Euclidean representation of the algebra of Dirac γ matrices in the space-time of arbitrary dimension d, where the first kind can detect some Bell-states diagonal m-partite multispinor bound entangled states in Hilbert space of dimension 2m⌊d/2⌋, including the bipartite relativisti...
متن کاملA Class of Bell Diagonal States and Entanglement Witnesses
We analyze special class of bipartite states – so called Bell diagonal states. In particular we provide new examples of bound entangled Bell diagonal states and construct the class of entanglement witnesses diagonal in the magic basis.
متن کاملRelations between Entanglement Witnesses and Bell Inequalities
Philipp Hyllus, Otfried Gühne, Dagmar Bruß, 3 and Maciej Lewenstein ∗1, 4 Institut für Theoretische Physik, Universität Hannover, D-30167 Hannover, Germany. Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, A-6020 Innsbruck, Austria. Institut für Theoretische Physik III, Universität Düsseldorf, D-40225 Düsseldorf, Germany. ICFO Institut de Ciències F...
متن کاملBell-states diagonal entanglement witnesses for relativistic and non-relativistic multispinor systems in arbitrary dimensions
Two kinds of Bell-states diagonal (BSD) entanglement witnesses (EW) are constructed by using the algebra of Dirac γ matrices in the space-time of arbitrary dimension d, where the first kind can detect some BSD relativistic and non-relativistic m-partite multispinor bound entangled states in Hilbert space of dimension 2m⌊d/2⌋, including the bipartite Bell-type and iso-concurrence type states in ...
متن کاملBell Inequalities and Entanglement Witnesses Using Two-Body Correlations
It has been shown that there exist Bell inequalities constructed from symmetric oneand two-body correlations that are violated by certain quantum states involving any number of particles. However, the properties of such Bell inequalities have not been completely characterised. In this study, we determine the behaviour of various classes of entangled states with respect to these inequalities. It...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2005
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.72.062106