搜索结果: 1-5 共查到“理学 Entanglement witnesses”相关记录5条 . 查询时间(0.078 秒)
One parameter family of indecomposable optimal entanglement witnesses arising from generalized Choi maps
generalized Choi maps One parameter family Quantum Physics
2011/10/8
Abstract: In the recent paper [Chru\'{s}ci\'{n}ski and Wudarski, arXiv:1105.4821], it was conjectured that the entanglement witnesses arising from some generalized Choi maps are optimal. We show that ...
Optimal entanglement witnesses from generalized reduction and Robertson maps
Optimal entanglement witnesses generalized reduction Robertson maps
2011/3/4
We provide a generalization of the reduction and Robertson positive maps in matrix algebras. They give rise to a new class of optimal entanglement witnesses. Their structural physical approximation is...
Universal nonlinear entanglement witnesses
nonlinear entanglement witnesses non-classical correlations
2010/3/10
We give a universal recipe for constructing nonlinear entanglement witnesses able to detect non-classical correlations in arbitrary systems of distinguishable and/or identical particles for an arbitra...
Entanglement witnesses and geometry of entanglement of two--qutrit states
Entanglement witnesses geometry of entanglement two--qutrit states
2010/4/12
We construct entanglement witnesses with regard to the geometric structure of the Hilbert--Schmidt space and investigate the geometry of entanglement. In particular, for a two--parameter family of two...
A general algorithm for manipulating non-linear and linear entanglement witnesses by using exact convex optimization
manipulating non-linear linear entanglement witnesses exact convex optimization
2010/4/9
A generic algorithm is developed to reduce the problem of obtaining linear and nonlinear entanglement witnesses of a given quantum system, to convex optimization problem. This approach is completely g...