Gravitational Lorentz violation and superluminality via AdS/CFT duality
- Department of Physics and Astronomy, Johns Hopkins University, 3400 North Charles St. Baltimore, Maryland 21218 (United States)
A weak quantum mechanical coupling is constructed permitting superluminal communication within a preferred region of a gravitating AdS{sub 5} spacetime. This is achieved by adding a spatially nonlocal perturbation of a special kind to the Hamiltonian of a four-dimensional conformal field theory with a weakly coupled AdS{sub 5} dual, such as maximally supersymmetric Yang-Mills theory. In particular, two issues are given careful treatment: (1) the UV-completeness of our deformed conformal field theory (CFT), guaranteeing the existence of a ''deformed string theory'' AdS dual and (2) the demonstration that superluminal effects can take place in AdS, both on its boundary as well as in the bulk. Exotic Lorentz-violating properties such as these may have implications for tests of general relativity, addressing the cosmological constant problem, or probing behind horizons. Our construction may give insight into the interpretation of wormhole solutions in Euclidean AdS gravity.
- OSTI ID:
- 21250070
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 77, Issue 8; Other Information: DOI: 10.1103/PhysRevD.77.086002; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CONFORMAL INVARIANCE
COSMOLOGICAL CONSTANT
COSMOLOGY
COUPLING
DE SITTER GROUP
DUALITY
EUCLIDEAN SPACE
FOUR-DIMENSIONAL CALCULATIONS
GENERAL RELATIVITY THEORY
HAMILTONIANS
LORENTZ INVARIANCE
PERTURBATION THEORY
QUANTUM FIELD THEORY
QUANTUM GRAVITY
QUANTUM MECHANICS
SPACE-TIME
STRING MODELS
SUPERSYMMETRY
WEAK-COUPLING MODEL
YANG-MILLS THEORY