Matter-gravity couplings and Lorentz violation

Journal Article · Sat Jan 01 00:00:00 EST 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.016013· OSTI ID:21503914

Kostelecky, V Alan; Tasson, Jay D ^[1]

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1. Physics Department, Indiana University, Bloomington, Indiana 47405 (United States)

The gravitational couplings of matter are studied in the presence of Lorentz and CPT violation. At leading order in the coefficients for Lorentz violation, the relativistic quantum Hamiltonian is derived from the gravitationally coupled minimal standard-model extension. For spin-independent effects, the nonrelativistic quantum Hamiltonian and the classical dynamics for test and source bodies are obtained. A systematic perturbative method is developed to treat small metric and coefficient fluctuations about a Lorentz-violating and Minkowski background. The post-Newtonian metric and the trajectory of a test body freely falling under gravity in the presence of Lorentz violation are established. An illustrative example is presented for a bumblebee model. The general methodology is used to identify observable signals of Lorentz and CPT violation in a variety of gravitational experiments and observations, including gravimeter measurements, laboratory and satellite tests of the weak equivalence principle, antimatter studies, solar-system observations, and investigations of the gravitational properties of light. Numerous sensitivities to coefficients for Lorentz violation can be achieved in existing or near-future experiments at the level of parts in 10{sup 3} down to parts in 10{sup 15}. Certain coefficients are uniquely detectable in gravitational searches and remain unmeasured to date.

• OSTI ID: 21503914
• Journal Information: Physical Review. D, Particles Fields, Vol. 83, Issue 1; Other Information: DOI: 10.1103/PhysRevD.83.016013; (c) 2011 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIMATTER
COUPLING
CP INVARIANCE
EQUIVALENCE PRINCIPLE
FLUCTUATIONS
GRAVITATION
HAMILTONIANS
LORENTZ INVARIANCE
MINKOWSKI SPACE
RELATIVISTIC RANGE
SENSITIVITY
SOLAR SYSTEM
SPIN
STANDARD MODEL
TRAJECTORIES
ANGULAR MOMENTUM
ENERGY RANGE
FIELD THEORIES
GRAND UNIFIED THEORY
INVARIANCE PRINCIPLES
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MATHEMATICAL SPACE
MATTER
PARTICLE MODELS
PARTICLE PROPERTIES
QUANTUM FIELD THEORY
QUANTUM OPERATORS
SPACE
UNIFIED GAUGE MODELS
VARIATIONS