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'''Correlation functions''' describe how physical quantities at different points in space and time are related in a quantum system.
'''Correlation functions''' describe how physical quantities at different points in space and time are related in a quantum system.


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<div style="font-size:90%;">Correlation functions encode measurable properties of quantum systems.</div>
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[[File:Quantum_field_theory_basics_light.jpg|thumb|280px|Quantum methods/correlation.]]
[[File:Quantum_field_theory_basics_light.jpg|thumb|280px|Correlation functions encode measurable properties of quantum systems.]]
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Revision as of 22:49, 17 May 2026

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Correlation functions describe how physical quantities at different points in space and time are related in a quantum system.

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Correlation functions encode measurable properties of quantum systems.

Overview

They are central objects in statistical mechanics and quantum field theory and determine observable quantities such as spectra and response functions.

Types

  • Two-point correlation functions
  • Higher-order correlations

Applications

Used in condensed matter physics, particle physics, and quantum optics.

See also

Table of contents (217 articles)

Index

Full contents

References


Author: Harold Foppele


Source attribution: Physics:Quantum Correlation functions

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