Entanglement witness

In quantum information theory, an entanglement witness is a functional which distinguishes a specific entangled state from separable ones… (More)
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2012
2012
We propose a set of linear quantum entanglement witnesses constituted by local quantum-mechanical observables with each two… (More)
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2011
2011
In a recent paper, it was shown that the projections of a relativistic spin operator (RSO) massive spin1 2 particle on a world… (More)
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2011
2011
We characterize a convex subset of entanglement witnesses for two qutrits. Equivalently, we provide a characterization of the set… (More)
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Highly Cited
2010
Highly Cited
2010
Traditionally, quantum entanglement has been central to foundational discussions of quantum mechanics. The measurement of… (More)
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2008
2008
In this paper based on the notion of entanglement witness, a new measure of entan-glement called floating entanglement witness… (More)
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2008
2008
We present very simple method for constructing indecomposable entanglement witnesses out of a given pair — an entanglement… (More)
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2005
2005
We present a unifying approach to the quantification of entanglement based on entanglement witnesses, which includes several… (More)
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2005
2005
We show that magnetic susceptibility can reveal spin entanglement between individual constituents of a solid, while magnetization… (More)
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2005
2005
We construct entanglement witnesses using fundamental quantum operators of spin models which contain two-particle interactions… (More)
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2005
2005
We study the connection between the Hilbert-Schmidt measure of entanglement (that is the minimal distance of an entangled state… (More)
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