Unruh Effect in non local field theories
arXiv:1704.03793 · doi:10.1103/PhysRevD.95.101701
Abstract
We study Unruh effect for a wide class of non local theories. Using the approach of Bogoliubov coefficents we show that Unruh effect remains entirely unmodified in these theories. However, for those non local theories which incorporate a minimal length, the approach using Unruh-DeWitt detectors predicts a modification in Unruh effect. Previous work shows that this modification may even be drastic. This appears contradictory, with two apparently equivalent methods giving different results. We investigate the origin of the contradiction and show that for these theories, the two methods are indeed inequivalent. We argue that the detector method incorporates an assumption of local interaction that does not hold for non local theories and therefore the method of Bogoliubov coefficients is preferable.
3 pages, 0 figures. Accepted for publication as a Rapid Communication in PRD
References in corpus (7)
- Towards a Resolution of the Cosmological Singularity in Non-local Higher Derivative Theories of Gravity
- Mass-gap for black hole formation in higher derivative and ghost free gravity
- Dynamics with Infinitely Many Derivatives: The Initial Value Problem
- Nonlocal and quasi-local field theories
- Ultraviolet Complete Quantum Gravity
- Predictions for Nongaussianity from Nonlocal Inflation
- What do detectors detect?
Cited by in corpus (15)
- The gravitational field of static p-branes in linearized ghost-free gravity
- Unruh effect for interacting particles with ultracold atoms
- Quantum scattering on a delta potential in ghost-free theory
- Ghost-free modification of the Polyakov action and Hawking radiation
- Unruh effect of nonlocal field theories with a minimal length
- Universality of the Unruh effect
- Hawking radiation in Non local field theories
- Non-locality effect on the entanglement entropy in deSitter
- Non-local scalar field on deSitter and its infrared behaviour
- Unruh-Fulling effect in nonlocal field theory: The role of Unruh decomposition
- Entanglement entropy of non-local theories in AdS
- RG studies of scalar-field models of long-range interactions
- Quantumness and entropic uncertainty for a pair of static Unruh-DeWitt detectors
- UV Effects and Short-Lived Hawking Radiation: Alternative Resolution of Information Paradox
- Towards Hamiltonian Formalism for String Field Theory and Nonlocality