skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Cosmic microwave background probes models of inflation

Abstract

Inflation creates both scalar (density) and tensor (gravity wave) metric perturbations. We find that the tensor-mode contribution to the cosmic microwave background anisotropy on large-angular scales can only exceed that of the scalar mode in models where the spectrum of perturbations deviates significantly from scale invariance (e.g., extended and power-law inflation models and extreme versions of chaotic inflation). If the tensor mode dominates at large-angular scales, then the value of [Delta][ital T]/[ital T] predicted on 1[degree] is less than if the scalar mode dominates, and, for cold-dark-matter models, bias factors [ital b][gt]1 can be made consistent with Cosmic Background Explorer Differential Microwave Radiometer results.

Authors:
; ; ; ;  [1]
  1. (Department of Physics, University of Pennsylvania, Philadelphia, Pennsylvania 19104 (United States) Harvard-Smithsonian Center for Astrophysics, Cambridge, Massachusetts 02138 (United States) Lawrence Berkeley Laboratory, Space Sciences Laboratory and Center for Particle Astrophysics, University of California, Berkeley, California 94720 (United States) Departments of Astronomy and Astrophysics and of Physics, Enrico Fermi Institute, The University of Chicago, Chicago, Illinois 60637 (United States) NASA/Fermilab Astrophysics Center, Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States))
Publication Date:
OSTI Identifier:
6991056
DOE Contract Number:  
AC03-76SF00098; AC02-76ER03071
Resource Type:
Journal Article
Journal Name:
Physical Review Letters; (United States)
Additional Journal Information:
Journal Volume: 69:13; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; COSMIC RADIATION; ANISOTROPY; INFLATIONARY UNIVERSE; CALCULATION METHODS; DATA ANALYSIS; POTENTIALS; SCALAR FIELDS; COSMOLOGICAL MODELS; IONIZING RADIATIONS; MATHEMATICAL MODELS; RADIATIONS; 662110* - General Theory of Particles & Fields- Theory of Fields & Strings- (1992-)

Citation Formats

Davis, R.L., Hodges, H.M., Smoot, G.F., Steinhardt, P.J., and Turner, M.S. Cosmic microwave background probes models of inflation. United States: N. p., 1992. Web. doi:10.1103/PhysRevLett.69.1856.
Davis, R.L., Hodges, H.M., Smoot, G.F., Steinhardt, P.J., & Turner, M.S. Cosmic microwave background probes models of inflation. United States. doi:10.1103/PhysRevLett.69.1856.
Davis, R.L., Hodges, H.M., Smoot, G.F., Steinhardt, P.J., and Turner, M.S. Mon . "Cosmic microwave background probes models of inflation". United States. doi:10.1103/PhysRevLett.69.1856.
@article{osti_6991056,
title = {Cosmic microwave background probes models of inflation},
author = {Davis, R.L. and Hodges, H.M. and Smoot, G.F. and Steinhardt, P.J. and Turner, M.S.},
abstractNote = {Inflation creates both scalar (density) and tensor (gravity wave) metric perturbations. We find that the tensor-mode contribution to the cosmic microwave background anisotropy on large-angular scales can only exceed that of the scalar mode in models where the spectrum of perturbations deviates significantly from scale invariance (e.g., extended and power-law inflation models and extreme versions of chaotic inflation). If the tensor mode dominates at large-angular scales, then the value of [Delta][ital T]/[ital T] predicted on 1[degree] is less than if the scalar mode dominates, and, for cold-dark-matter models, bias factors [ital b][gt]1 can be made consistent with Cosmic Background Explorer Differential Microwave Radiometer results.},
doi = {10.1103/PhysRevLett.69.1856},
journal = {Physical Review Letters; (United States)},
issn = {0031-9007},
number = ,
volume = 69:13,
place = {United States},
year = {1992},
month = {9}
}