Quantify entanglement by concurrence hierarchy
نویسندگان
چکیده
منابع مشابه
Entanglement of formation and concurrence
In both classical mechanics and quantum mechanics, one can de ne a pure state to be a state that is as completely speci ed as the theory allows. In classical mechanics a pure state might be represented by a point in phase space. In quantum mechanics it is a vector in a complex vector space. Perhaps the most remarkable feature of quantum mechanics, a feature that clearly distinguishes it from cl...
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otherwise it is entangled or inseparable. Then a question arises: How to detect whether a state is entangled or not? If ρ is entangled, how to quantify the degree of its entanglement? To answer these two questions, we need to introduce some measures of entanglement to quantify the degree of entanglement. The entanglement measure for a state is zero iff the state is separable, and the bigger is ...
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ژورنال
عنوان ژورنال: Journal of Physics A: Mathematical and General
سال: 2003
ISSN: 0305-4470,1361-6447
DOI: 10.1088/0305-4470/36/14/316