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Source field

In theoretical physics, a source is an abstract concept, developed by Julian Schwinger, motivated by the physical effects of surrounding particles involved in creating or destroying another particle. So, one can perceive sources as the origin of the physical properties carried by the created or destroyed particle, and thus one can use this concept to…

Art, Effective action, mean field approximation, and vertex functions & Source theory for fields

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Effective action, mean field approximation, and vertex functions

Steven WeinbergTaylor expansionPartition sumWick-rotatedHelmholtz free energy
23 related topics

Source theory for fields

Massive spin-1 particleRest frameGauge-fixingQuantum electrodynamicsBelinfante-Rosenfeld
24 related topics

Relation between path integral formulation and source formulation

Partition functionGreen's functionsHeisenberg picturesCoupling constantProbability theory
9 related topics

Overview

Theoretical physicsJulian SchwingerParticleProbability amplitudeTensorial
18 related topics

Topics to explore

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Overview

Relation between path integral formulation and source formulation

Source theory for scalar fields

Effective action, mean field approximation, and vertex functions

Source theory for fields

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Map overview Semantic statistics

Source field

Nodes83
Edges82
Triples18
Avg. degree1.98
Density0.024096
Components1

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Source field

Top relations

related to Effective action, mean field approximation, and vertex functions · 16
Source field → All Green's, And, Based, Despite, Helmholtz, Legendre, One, Schwinger, Schwinger's, Steven Weinberg, Taylor, The, This, Upon, Weinberg, Wick-rotated
is a · 2
Source field → background field J, electric current or the stress

Important terminology Word statistics

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Important terminology

displaystyle source frac left right mu phi int field langle rangle delta nu amplitude theory exp one eta pi function

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Source fieldis abackground field J0.90text
Source fieldis aelectric current or the stress0.90text
Source fieldrelated to Effective action, mean field approximation, and vertex functionsBased0.60section
Source fieldrelated to Effective action, mean field approximation, and vertex functionsSchwinger's0.60section
Source fieldrelated to Effective action, mean field approximation, and vertex functionsSteven Weinberg0.60section
Source fieldrelated to Effective action, mean field approximation, and vertex functionsDespite0.60section
Source fieldrelated to Effective action, mean field approximation, and vertex functionsWeinberg0.60section
Source fieldrelated to Effective action, mean field approximation, and vertex functionsSchwinger0.60section
Source fieldrelated to Effective action, mean field approximation, and vertex functionsAll Green's0.60section
Source fieldrelated to Effective action, mean field approximation, and vertex functionsTaylor0.60section
Source fieldrelated to Effective action, mean field approximation, and vertex functionsThis0.60section
Source fieldrelated to Effective action, mean field approximation, and vertex functionsThe0.60section

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    Min side: 3
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