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An '''operator''' is a mathematical object that acts on a [[Physics:Quantum methods/basis|basis]] or state to produce another state. In quantum theory, operators represent physical quantities such as position, momentum, and energy.
An '''operator''' is a mathematical object that acts on a [[Physics:Quantum methods/basis|basis]] or state to produce another state. In quantum theory, operators represent physical quantities such as position, momentum, and energy.


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<div style="font-size:90%;">Operators act on states to produce measurable quantities.</div>
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[[File:Quantum_operator.png|thumb|280px|Quantum methods/operator.]]
[[File:Quantum_operator.png|thumb|280px|Operators act on states to produce measurable quantities.]]
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Revision as of 22:49, 17 May 2026

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An operator is a mathematical object that acts on a basis or state to produce another state. In quantum theory, operators represent physical quantities such as position, momentum, and energy.

Operators act on states to produce measurable quantities.

Description

Operators encode the measurable properties of a system. Applying an operator to a state yields information about the corresponding physical quantity.

Properties

  • acts on states or functions
  • represents observables
  • central to quantum formalism

See also

Table of contents (217 articles)

Index

Full contents

References


Author: Harold Foppele


Source attribution: Physics:Quantum methods/operator

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