WMAP-normalized inflationary model predictions and the search for primordial gravitational waves with direct detection experiments
نویسندگان
چکیده
منابع مشابه
Direct Detection of Primordial Gravitational Waves in a BSI Inflationary Model
We investigate the possibility for a direct detection by future space interferometers of the stochastic gravitational wave (GW) background generated during the inflationary stage in a class of viable ΛCDM BSI models. At frequencies around 10Hz, maximal values Ωgw(ν) ∼ 3 × 10 are found, an improvement of about one order of magnitude compared to single-field, slowroll inflationary models. This is...
متن کاملCBR anisotropy from primordial gravitational waves in inflationary cosmologies.
We examine stochastic temperature fluctuations of the cosmic background radiation (CBR) arising via the Sachs-Wolfe effect from gravitational wave perturbations produced in the early universe. These temperature fluctuations are described by an angular correlation function C(γ). A new (more concise and general) derivation of C(γ) is given, and evaluated for inflationary-universe cosmologies. Thi...
متن کاملPrimordial Gravitational Waves and Inflation: CMB and Direct Detection With Space-Based Laser Interferometers
The curl-modes of Cosmic Microwave Background (CMB) polarization probe horizon-scale primordial gravitational waves related to inflation. A significant source of confusion is expected from a lensing conversion of polarization related to density perturbations to the curl mode, during the propagation of photons through the large scale structure. Either high resolution CMB anisotropy observations ...
متن کاملStructure of Primordial Gravitational Waves Spectrum in a Double Inflationary Model
The gravitational waves (GW) background generated in a double inflationary model, with two scalar fields mutually interacting through gravity only, and its relative contribution T/S to large-angle temperature fluctuations of the relic microwave background are investigated in detail. The relation between T/S and the slope of the GW spectrum nT is shown to be a discriminative test between a slow-...
متن کاملPrimordial gravitational waves and cosmology.
The observation of primordial gravitational waves could provide a new and unique window on the earliest moments in the history of the universe and on possible new physics at energies many orders of magnitude beyond those accessible at particle accelerators. Such waves might be detectable soon, in current or planned satellite experiments that will probe for characteristic imprints in the polariz...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2006
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.74.123509