Primordial curvature perturbation from lattice simulations
| Autor: | Shailee V. Imrith, Arttu Rajantie, David J. Mulryne |
|---|---|
| Přispěvatelé: | Science and Technology Facilities Council (STFC) |
| Rok vydání: | 2019 |
| Předmět: |
Physics
Science & Technology Cosmology and Nongalactic Astrophysics (astro-ph.CO) 010308 nuclear & particles physics FOS: Physical sciences Curvature perturbation Astrophysics::Cosmology and Extragalactic Astrophysics Astronomy & Astrophysics 01 natural sciences Physics Particles & Fields Massless particle General Relativity and Quantum Cosmology Formalism (philosophy of mathematics) Lattice (order) Physical Sciences 0103 physical sciences astro-ph.CO 010306 general physics Scalar field Astrophysics - Cosmology and Nongalactic Astrophysics Mathematical physics |
| Zdroj: | Physical Review D. 100 |
| ISSN: | 2470-0029 2470-0010 |
| DOI: | 10.1103/physrevd.100.043543 |
| Popis: | We study the contribution to the primordial curvature perturbation on observational scales generated by the reheating field in massless preheating. To do so we use lattice simulations and a recent extension to the $\delta N$ formalism. The work demonstrates the functionality of these techniques for calculating the observational signatures of models in which non-perturbative reheating involves a light scalar field. Comment: 7 pages, 3 figures |
| Databáze: | OpenAIRE |
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