Quantum metrological gain
id:
quantum-metrological-gain-189-1987156
title:
Quantum metrological gain
text:
In quantum metrology in a multiparticle system, the quantum metrological gain for a quantum state is defined as the sensitivity of phase estimation achieved by that state divided by the maximal sensitivity achieved by separable states, i.e., states without quantum entanglement. In practice, the best separable state is the trivial fully polarized state, in which all spins point into the same direction. If the metrological gain is larger than one then the quantum state is more useful for making pr
brand slug:
wiki
category slug:
encyclopedia
description:
Measurement in quantum metrology
original url:
https://en.wikipedia.org/wiki/Quantum_metrological_gain
date created:
2024-05-14T20:53:23Z
date modified:
2024-09-09T03:07:51Z
main entity:
{"identifier":"Q130250767","url":"https://www.wikidata.org/entity/Q130250767"}
image:
fields total:
13
integrity:
15