Improved estimates of cosmological perturbations
By N. Tsamis, Richard P. Woodard. 2003
139 citations recorded by the source corpus.
We recently derived exact solutions for the scalar, vector, and tensor mode functions of a single, minimally coupled scalar plus gravity in an arbitrary homogeneous and isotropic background. These solutions are applied to obtain improved estimates for the primordial scalar and tensor power spectra of anisotropies in the cosmic microwave background.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/2495a0a0f2450ef32c5868c6921dd6dd18a97fdb
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Astronomy and Astrophysics
In Nuclear and High Energy Physics
Citations in the corpus
- On primordial black holes from an inflection point (2017, background): “In reality, close to an inflection point (and also close to a near inflection point used in [7]) the inflaton must either exit from inflation or enter an ultra-slow-roll regime [11, 12, 13, 14, 15, 16].”
- Inflation with a constant rate of roll (2014, background): “This fact has been pointed out from the beginning of this class of models [14].”
- Single field double inflation and primordial black holes (2017, background): “This leads to ultra slow-roll inflation for which the slow-roll approximation inevitably fails [73].”
- Categorizing Different Approaches to the Cosmological Constant Problem (2004, background): “Long-Wavelength Back-Reaction in Pure Gravity Closely related are studies by Tsamis and Woodard, see [70, 71, 72, 73, 74, 75, 76] concerning the back-reaction of long-wavelength gravitational waves in pure gravity with a bare cosmological constant.”
- Steepest growth of the power spectrum and primordial black holes (2018, background): “As verified explicitly through a potential reconstruction exercise in appendix C, we indeed see that a phase of Ultra Slow-Roll (USR) inflation [44, 45], defined as a phase of constant η = −6, is attained as one approaches an inflection point, which can also be reasonably well approximated by a smal”
- Primordial black holes and second order gravitational waves from ultra-slow-roll inflation (2017, background): “n aton almost stop rolling when the potential becomes very at, and the number of e-folds becomes very large. However, if the potential is very at, then the in aton enters the ultra-slow-roll in ation [52,53] and the analytical expressions for the power spectra from slow-roll in ation cannot be appli”