Quantum information theory

Entanglement witness

In quantum information theory, an entanglement witness is a functional which distinguishes a specific entangled state from separable ones. Entanglement witnesses can be linear or nonlinear functionals of the density matrix. If linear, then they can also be viewed as observables for which the expectation value of the entangled state is strictly outside the range of possible expectation values of any separable state. (Wikipedia).

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From playlist Ethical Hacking & Penetration Testing - Complete Course

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From playlist Ethical Hacking & Penetration Testing - Complete Course

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From playlist Surgery Intermediate Exam Masterclass

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From playlist Ethical Hacking & Penetration Testing - Complete Course

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From playlist Comprehensive Subdomain Enumeration

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Don’t forget to subscribe! This ethical hacking tutorial series is about comprehensive subdomain enumeration. Through this tutorial series, I will be demonstrating how to install, configure and use different tools for subdomain enumeration. We will try to go through the following subdom

From playlist Comprehensive Subdomain Enumeration

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From playlist Comprehensive Subdomain Enumeration

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From playlist Comprehensive Subdomain Enumeration

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Related pages

Density matrix | Compact space | Functional (mathematics) | Hahn–Banach theorem | Quantum entanglement | Bounded operator | Banach space | Separable state | Convex hull | Riesz representation theorem | Hilbert–Schmidt operator