Hiding Lorentz invariance violation with MOND

Journal Article · Sat Oct 15 04:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.84.084024· OSTI ID:21607908

Sanders, R H ^[1]

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1. Kapteyn Astronomical Institute, P.O. Box 800, 9700 AV Groningen (Netherlands)

Horava-Lifshitz gravity is an attempt to construct a renormalizable theory of gravity by breaking the Lorentz invariance of the gravitational action at high energies. The underlying principle is that Lorentz invariance is an approximate symmetry and its violation by gravitational phenomena is somehow hidden to present limits of observational precision. Here I point out that a simple modification of the low-energy limit of Horava-Lifshitz gravity in its nonprojectable form can effectively camouflage the presence of a preferred frame in regions where the Newtonian gravitational field gradient is higher than cH{sub 0}; this modification results in the phenomenology of modified Newtonian dynamics (MOND) at lower accelerations. As a relativistic theory of MOND, this modified Horava-Lifshitz theory presents several advantages over its predecessors.

• OSTI ID: 21607908
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 8 Vol. 84; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATION
APPROXIMATIONS
CALCULATION METHODS
ENERGY RANGE
GRAVITATION
GRAVITATIONAL FIELDS
INVARIANCE PRINCIPLES
LORENTZ INVARIANCE
MODIFICATIONS
RELATIVISTIC RANGE
SYMMETRY