Brans–Dicke theory
E703697
Brans–Dicke theory is an alternative theory of gravitation to Einstein’s general relativity that introduces a scalar field to allow for a varying gravitational “constant.”
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
alternative theory of gravity
ⓘ
metric theory of gravitation ⓘ scalar–tensor theory of gravitation ⓘ |
| allows | varying gravitational constant ⓘ |
| assumes |
Lorentzian spacetime metric
ⓘ
minimal coupling of matter to metric ⓘ |
| belongsTo | class of Jordan–Fierz–Brans–Dicke theories ⓘ |
| constrainedBy |
Cassini spacecraft measurements
NERFINISHED
ⓘ
solar system experiments ⓘ |
| generalizes | Jordan’s scalar–tensor theory NERFINISHED ⓘ |
| hasAuthor |
Carl H. Brans
NERFINISHED
ⓘ
Robert H. Dicke NERFINISHED ⓘ |
| hasField |
cosmology
ⓘ
gravitational physics ⓘ theoretical physics ⓘ |
| hasLagrangianDensity | L ∝ √(-g)(φR - ω φ^{-1} ∂_μφ ∂^μφ + L_m) ⓘ |
| hasMathematicalStructure | metric tensor plus scalar field ⓘ |
| hasOriginalPaperTitle | “Mach’s Principle and a Relativistic Theory of Gravitation” NERFINISHED ⓘ |
| hasParameter | Brans–Dicke coupling constant ⓘ |
| hasParameterSymbol | ω ⓘ |
| hasPostNewtonianParameter | γ ⓘ |
| influenced |
inflationary cosmology models
ⓘ
modern scalar–tensor dark energy models ⓘ |
| introduces | scalar field ⓘ |
| isCompatibleWith | local conservation of energy–momentum ⓘ |
| isFormulatedIn | four-dimensional spacetime ⓘ |
| isTestedBy |
binary pulsar observations
ⓘ
cosmological observations ⓘ |
| modifies | Einstein’s general relativity NERFINISHED ⓘ |
| namedAfter |
Carl H. Brans
NERFINISHED
ⓘ
Robert H. Dicke NERFINISHED ⓘ |
| obeys | Mach’s principle approximately ⓘ |
| predicts |
deviations from general relativity in weak-field tests
ⓘ
time variation of effective Newton’s constant ⓘ |
| publicationYear | 1961 ⓘ |
| publishedInJournal | Physical Review NERFINISHED ⓘ |
| reducesTo | general relativity in a certain limit ⓘ |
| reducesToGeneralRelativityWhen | ω → ∞ ⓘ |
| relatesParameterGammaToOmega | γ = (1 + ω)/(2 + ω) ⓘ |
| satisfies | weak equivalence principle ⓘ |
| treats | gravitational constant as dynamical field ⓘ |
| uses |
Einstein frame metric
NERFINISHED
ⓘ
Jordan frame metric NERFINISHED ⓘ |
| wasMotivatedBy |
Dirac’s large number hypothesis
NERFINISHED
ⓘ
Mach’s principle NERFINISHED ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.