Phenomenologically Viable Lorentz-Violating Quantum Gravity

Journal Article · Fri Jun 26 04:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.102.251601· OSTI ID:21346993

Sotiriou, Thomas P ^[1]; Visser, Matt ^[2]; Weinfurtner, Silke ^[3]

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1. Center for Fundamental Physics, University of Maryland, College Park, Maryland 20742-4111 (United States)
2. School of Mathematics, Statistics, and Operations Research, Victoria University of Wellington (New Zealand)
3. Physics and Astronomy Department, University of British Columbia, Vancouver (Canada)

Horava's 'Lifschitz point gravity' has many desirable features, but in its original incarnation one is forced to accept a nonzero cosmological constant of the wrong sign to be compatible with observation. We develop an extension of Horava's model that abandons 'detailed balance' and regains parity invariance, and in 3+1 dimensions exhibit all five marginal (renormalizable) and four relevant (super-renormalizable) operators, as determined by power counting. We also consider the classical limit of this theory, evaluate the Hamiltonian and supermomentum constraints, and extract the classical equations of motion in a form similar to the Arnowitt-Deser-Misner formulation of general relativity. This puts the model in a framework amenable to developing detailed precision tests.

• OSTI ID: 21346993
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 25 Vol. 102; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMOLOGICAL CONSTANT
DIFFERENTIAL EQUATIONS
EQUATIONS
EQUATIONS OF MOTION
FIELD THEORIES
GENERAL RELATIVITY THEORY
HAMILTONIANS
MATHEMATICAL OPERATORS
PARITY
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE PROPERTIES
QUANTUM FIELD THEORY
QUANTUM GRAVITY
QUANTUM OPERATORS
RELATIVITY THEORY