Generalized theory of gravitation

Moffat, J. W.

doi:10.1007/bf01889321

Cited by 31 publications

(9 citation statements)

References 29 publications

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“…18). Nonsymmetric gravitational theory is in agreement with all present-day gravitational experiments (18)(19)(20)(21)(22)(23)(24)(25)(26). The weak-field behaviour of N.G.T.…”

Section: Introductionsupporting

confidence: 75%

“…The Palatini formulation has been investigated in detail both as a unified theory (33) and as an extended theory of gravitation (N.G.T.) (18). Certain experiments could potentially detect N.G.T.-like behaviour of the gravitational field (if any exists) (18)(19)(20); the most promising of these seems to be observations of apsidal motion in binary systems (12).…”

Section: Discussionmentioning

confidence: 99%

“…A conserved U(1) current is also introduced that couples to the metric without violating the equivalence principle; this current is interpreted to be a conserved number current (or fermion current) (28). In general, these constraints are quite weak (18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)31). For example, the static, spherically symmetric solution is (39,40) The parameter l2 in [15] is the "charge" related to the aforementioned conserved particle number current in the usual way.…”

Section: Interpretation and Phenomenologymentioning

confidence: 99%

“…since in N.G.T. a retrograde periastron shift is possible (18)(19)(20). Guinan and Maloney have reported an analysis of data taken by them of DI Her, combined with all other data known about the system (1 I).…”

Section: Interpretation and Phenomenologymentioning

confidence: 99%

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Gravity, ghosts, and strings

Mann¹

1986

Can. J. Phys.

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A recently introduced technique for extending general relativity is reviewed. This technique, called algebraic extension, yields five theories of gravitation (one of which is Einstein's) that might have interesting implications for strong-field gravitational physics. The particle spectra of these theories are presented. Only one of the four extensions is free of ghosts and tachyons. There exists a (hitherto unexplored) formulation of this theory that contains a gauge-invariant string Lagrangian in the linear approximation.On examine une technique introduite rkcemment pour l'extension de la relativitk gknkrale. Cette technique, appelke extension algkbrique, donne cinq theories de la gravitation (dont l'une est celle d'Einstein), qui pourraient avoir des implications intkressantes pour la physique gravitationnelle en champ fort. Le spectre de particules de ces theories est prCsentC: seulement une des quatre extensions est exempte de fant6mes et de tachyons. I1 existe une formulation (non encore explorke) de cette thkorie qui contient un lagrangien de corde invariant de jauge dans l'approximation linkaire.[Traduit par la revue]Can.

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“…18). Nonsymmetric gravitational theory is in agreement with all present-day gravitational experiments (18)(19)(20)(21)(22)(23)(24)(25)(26). The weak-field behaviour of N.G.T.…”

Section: Introductionsupporting

confidence: 75%

Section: Discussionmentioning

confidence: 99%

Section: Interpretation and Phenomenologymentioning

confidence: 99%

Section: Interpretation and Phenomenologymentioning

confidence: 99%

See 2 more Smart Citations

Gravity, ghosts, and strings

Mann¹

1986

Can. J. Phys.

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“…[3][4][5] However, the original versions of NGT were confronted with perturbative consistency problems due to the absence of a massless gauge invariance in the skew sector of the theory. The only gauge invariance was that associated with general covariance of the theory [6][7][8] which was clarified by Damour et al, who showed that the wave solutions of the weak-field equations did not decrease at large distances from the source along the forward light cone.…”

Section: Introductionmentioning

confidence: 99%