Entanglement witness
id:
entanglement-witness-261-9451998
title:
Entanglement witness
text:
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.
brand slug:
wiki
category slug:
encyclopedia
description:
Construct in quantum information theory
original url:
https://en.wikipedia.org/wiki/Entanglement_witness
date created:
date modified:
2022-12-23T01:11:49Z
main entity:
{"identifier":"Q5380097","url":"https://www.wikidata.org/entity/Q5380097"}
image:
fields total:
13
integrity:
14