publication . Article . Preprint . 2015

MULTIMODECODE: an efficient numerical solver for multifield inflation

Layne C. Price; Jonathan Frazer; Jiajun Xu; Hiranya V. Peiris; Richard Easther;
Open Access
  • Published: 02 Mar 2015 Journal: Journal of Cosmology and Astroparticle Physics, volume 2,015, pages 5-5 (eissn: 1475-7516, Copyright policy)
  • Publisher: IOP Publishing
  • Country: United Kingdom
Abstract
We present MultiModeCode, a Fortran 95/2000 package for the numerical exploration of multifield inflation models. This program facilitates efficient Monte Carlo sampling of prior probabilities for inflationary model parameters and initial conditions and is the first publicly available code that can efficiently generate large sample-sets for inflation models with $\mathcal O(100)$ fields. The code numerically solves the equations of motion for the background and first-order perturbations of multi-field inflation models with canonical kinetic terms and arbitrary potentials, providing the adiabatic, isocurvature, and tensor power spectra at the end of inflation. Fo...
Persistent Identifiers
Subjects
free text keywords: Astronomy and Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, High Energy Physics - Phenomenology, High Energy Physics - Theory, Science & Technology, Physical Sciences, Astronomy & Astrophysics, Physics, Particles & Fields, Physics, inflation, cosmological perturbation theory, initial conditions and eternal universe, physics of the early universe, DENSITY PERTURBATIONS, 2-FIELD INFLATION, CHAOTIC INFLATION, PARTICLE PHYSICS, DYNAMICS, MODELS, Eternal inflation, Cosmological perturbation theory, Adiabatic process, Solver, Inflation, media_common.quotation_subject, media_common, Applied mathematics, Equations of motion, Monte Carlo method, Physics, Toy model
Funded by
EC| COSMICDAWN
Project
COSMICDAWN
Understanding the Origin of Cosmic Structure
  • Funder: European Commission (EC)
  • Project Code: 306478
  • Funding stream: FP7 | SP2 | ERC
,
NSF| Programs on Critical Problems in Physics, Astrophysics and Biophysics at the Aspen Center for Physics
Project
  • Funder: National Science Foundation (NSF)
  • Project Code: 1066293
  • Funding stream: Directorate for Mathematical & Physical Sciences | Division of Physics
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