Quantum Fisher information
id:
quantum-fisher-information-206-15854183
title:
Quantum Fisher information
text:
The quantum Fisher information is a central quantity in quantum metrology and is the quantum analogue of the classical Fisher information. It is one of the central quantities used to qualify the utility of an input state, especially in Mach–Zehnder interferometer-based phase or parameter estimation. It is shown that the quantum Fisher information can also be a sensitive probe of a quantum phase transition. The quantum Fisher information F Q [ ϱ, A ] of a state ϱ with respect to the observable A
brand slug:
wiki
category slug:
encyclopedia
description:
Quantum
original url:
https://en.wikipedia.org/wiki/Quantum_Fisher_information
date created:
2019-12-27T14:34:30Z
date modified:
2024-09-10T20:04:42Z
main entity:
{"identifier":"Q85795245","url":"https://www.wikidata.org/entity/Q85795245"}
image:
fields total:
13
integrity:
15