Gravity, Lorentz violation, and the standard model

@article{Kosteleck2004GravityLV,
  title={Gravity, Lorentz violation, and the standard model},
  author={Alan Kosteleck{\'y}},
  journal={Physical Review D},
  year={2004},
  volume={69},
  pages={105009}
}
The role of the gravitational sector in the Lorentz- and CPT-violating standard-model extension ~SME! is studied. A framework is developed for addressing this topic in the context of Riemann-Cartan spacetimes, which include as limiting cases the usual Riemann and Minkowski geometries. The methodology is first illustrated in the context of the QED extension in a Riemann-Cartan background. The full SME in this background is then considered, and the leading-order terms in the SME action involving… Expand
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References

SHOWING 1-10 OF 115 REFERENCES
Gravity with a dynamical preferred frame
We study a generally covariant model in which local Lorentz invariance is broken "spontaneously" by a dynamical unit timelike vector field $u^a$---the "aether". Such a model makes it possible toExpand
Gravitational phenomenology in higher-dimensional theories and strings.
  • Kosteleck, Samuel
  • Physics, Medicine
  • Physical review. D, Particles and fields
  • 1989
We investigate gravitational phenomenology in compactified higher-dimensional theories, with particular emphasis on the consequences in string theory of tensor-induced spontaneous Lorentz-symmetryExpand
Lorentz Invariance and the Gravitational Field
An argument leading from the Lorentz invariance of the Lagrangian to the introduction of the gravitational field is presented. Utiyama's discussion is extended by considering the 10‐parameter groupExpand
Born-Infeld theory and stringy causality
Fluctuations around a non-trivial solution of Born-Infeld theory have a limiting speed given not by the Einstein metric but the Boillat metric. The Boillat metric is S-duality invariant and conformalExpand
General Relativity with Spin and Torsion: Foundations and Prospects
A generalization of Einstein's gravitational theory is discussed in which the spin of matter as well as its mass plays a dynamical role. The spin of matter couples to a non-Riemannian structure inExpand
Limits on a Lorentz- and parity-violating modification of electrodynamics.
TLDR
The Chern-Simons Lagrangian would rotate the plane of polarization of radiation from distant galaxies, an effect which is not observed, and the magnitude of the vector is 1.7 times the Hubble constant. Expand
Loop-generated bounds on changes to the graviton dispersion relation
We identify the effective theory appropriate to the propagation of massless bulk fields in brane-world scenarios, to show that the dominant low-energy effect of asymmetric warping in the bulk is toExpand
Physical aspects of the space-time torsion
Abstract We review many quantum aspects of torsion theory and discuss the possibility of the space–time torsion to exist and to be detected. The paper starts, in Section 2, with a pedagogicalExpand
Stability, causality, and Lorentz and CPT violation
Stability and causality are investigated for quantum field theories incorporating Lorentz and CPT violation. Explicit calculations in the quadratic sector of a general renormalizable lagrangian for aExpand
Expectation values, Lorentz invariance, and CPT in the open bosonic string
The issue of spontaneous breaking of Lorentz and CPT invariance is studied in the open bosonic string using a truncation scheme to saturate the string-field action at successively higher levels. WeExpand
...
1
2
3
4
5
...