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Effective action

In quantum field theory, the quantum effective action is a modified expression for the classical action taking into account quantum corrections while ensuring that the principle of least action applies, meaning that extremizing the effective action yields the equations of motion for the vacuum expectation values of the quantum fields. The effective…

Generating functionals, Overview & Symmetries

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Overview

Generating functionals

Methods for calculating the effective action

Symmetries

Convexity

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Map overview Semantic statistics

Effective action

Nodes43
Edges42
Triples21
Avg. degree1.95
Density0.046512
Components1

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Effective action

Top relations

related to Further reading · 13
Effective action → Cambridge University Press, Das, Field Theory, Fields, II, Modern Applications, Path Integral Approach, Quantum Field Theory, Standard Model, The Quantum Theory, The Schwinger Action Principle, Vol, World Scientific Publishing
has method · 4
Effective action → Alternatively, Feynman, Gamma, This
related to Symmetries · 3
Effective action → Gamma, If, Symmetries
is a · 1
Effective action → modified expression for the classical action taking into account quantum corrections while ensuring that the principle of least action applies

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Important terminology

effective action displaystyle phi field classical correlation potential expectation quantum functional also theory functions vacuum generating value perturbatively gamma fields

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Effective actionis amodified expression for the classical action taking into account quantum corrections while ensuring that the principle of least action applies0.90text
Effective actionhas methodGamma0.60section
Effective actionhas methodFeynman0.60section
Effective actionhas methodThis0.60section
Effective actionhas methodAlternatively0.60section
Effective actionrelated to Further readingDas0.60section
Effective actionrelated to Further readingField Theory0.60section
Effective actionrelated to Further readingPath Integral Approach0.60section
Effective actionrelated to Further readingWorld Scientific Publishing0.60section
Effective actionrelated to Further readingQuantum Field Theory0.60section
Effective actionrelated to Further readingStandard Model0.60section
Effective actionrelated to Further readingCambridge University Press0.60section

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    Min side: 3
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