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Back action (quantum)

In quantum mechanics, back action is the phenomenon in which the act of measuring a property of a particle directly influences the state of the particle. In all scientific measurement, there exists a degree of error due to various factors, such as unaccounted-for variables, imperfect procedures, or imperfect measurement devices.

Measurement, Art & Science

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Effect of measurement on system

Linear combinationBra-ket notationEigenstatesEigenvalueNanomechanical systems
5 related topics

Simultaneous measurement and uncertainty

Uncertainty principle
1 related topics

Overview

Quantum mechanicsClassical mechanicsAbsolute zeroQuantum fluctuations
4 related topics

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Simultaneous measurement and uncertainty

Effect of measurement on system

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Back action (quantum)

Nodes14
Edges13
Triples0
Avg. degree1.86
Density0.142857
Components1

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measurement quantum eigenstates uncertainty set state back action measuring system observables probability mechanics influences zero observable displaystyle rangle hat minimum

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