Cosmological Particle Creation in the Presence of Lorentz Violation
arXiv:0707.3247 · doi:10.1016/j.physletb.2007.07.023
Abstract
In recent years, the effects of Lorentz symmetry breaking in cosmology has attracted considerable amount of attention. In cosmological context several topics can be affected by Lorentz violation,e.g., inflationary scenario, CMB, dark energy problem and barryogenesis. In this paper we consider the cosmological particle creation due to Lorentz violation (LV). We consider an exactly solvable model for finding the spectral properties of particle creation in an expanding space-time exhibiting Lorentz violation. In this model we calculate the spectrum and its variations with respect to the rate and the amount of space-time expansion.
arXiv comment6 pages, 6 figures, To appear in Physics Letters B
References in corpus (20)
- Lorentz-Violating Extension of the Standard Model
- CPT Violation and the Standard Model
- High-Energy Tests of Lorentz Invariance
- Noncommutative Field Theory and Lorentz Violation
- Extension of the Cosmic-Ray Energy Spectrum Beyond the Predicted Greisen-Zatsepin-Kuz'min Cutoff
- Einstein-Aether Waves
- Inflation as a Probe of Short Distance Physics
- On the Dependence of the Spectra of Fluctuations in Inflationary Cosmology on Trans-Planckian Physics
- Robustness of the inflationary perturbation spectrum to trans-Planckian physics
- On Signatures of Short Distance Physics in the Cosmic Microwave Background
- Cosmological perturbations and short distance physics from Noncommutative Geometry
- Cosmological acceleration, varying couplings, and Lorentz breaking
- Back-Reaction and the Trans-Planckian Problem of Inflation Revisited
- The Corley-Jacobson dispersion relation and trans-Planckian inflation
- Generally covariant model of a scalar field with high frequency dispersion and the cosmological horizon problem
- Cutoff in the TeV Energy Spectrum of Markarian 421 During Strong Flares in 2001
- Lorentz Invariance and the Cosmological Constant
- Thermal Particle Creation in Cosmological Spacetimes: A Stochastic Approach
- A First-Quantized Formalism for Cosmological Particle Production
- String Pair Production in a Time-Dependent Gravitational Field