Lyth bound, eternal inflation, and future cosmological missions

Lyth bound, eternal inflation, and future cosmological missions In this paper we provide a new expression for the variation of the inflaton field Δϕ during the horizon crossing epoch in the context of single field slow roll inflationary models. Such an expression represents a generalization of the well-known Lyth bound. We also explore the consequences of a detection of permille order of the tensor-to-scalar ratio amplitude, r, as well as an improvement on the estimation of the scalar spectral index, ns and its running αs, by the upcoming cosmic microwave background (CMB) polarization experiments that will provide plausible constraints on the quantity Δϕ during the horizon exit moment. In addition we discuss the relation between the local variation of the field and the possibilities of an eternal inflation. The results of the analysis are completely model independent. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review D American Physical Society (APS)

Lyth bound, eternal inflation, and future cosmological missions

Preview Only

Lyth bound, eternal inflation, and future cosmological missions

Abstract

In this paper we provide a new expression for the variation of the inflaton field Δϕ during the horizon crossing epoch in the context of single field slow roll inflationary models. Such an expression represents a generalization of the well-known Lyth bound. We also explore the consequences of a detection of permille order of the tensor-to-scalar ratio amplitude, r, as well as an improvement on the estimation of the scalar spectral index, ns and its running αs, by the upcoming cosmic microwave background (CMB) polarization experiments that will provide plausible constraints on the quantity Δϕ during the horizon exit moment. In addition we discuss the relation between the local variation of the field and the possibilities of an eternal inflation. The results of the analysis are completely model independent.
Loading next page...
 
/lp/aps_physical/lyth-bound-eternal-inflation-and-future-cosmological-missions-4ktzyYTMKl
Publisher
American Physical Society (APS)
Copyright
Copyright © © 2017 American Physical Society
ISSN
1550-7998
eISSN
1550-2368
D.O.I.
10.1103/PhysRevD.96.023511
Publisher site
See Article on Publisher Site

Abstract

In this paper we provide a new expression for the variation of the inflaton field Δϕ during the horizon crossing epoch in the context of single field slow roll inflationary models. Such an expression represents a generalization of the well-known Lyth bound. We also explore the consequences of a detection of permille order of the tensor-to-scalar ratio amplitude, r, as well as an improvement on the estimation of the scalar spectral index, ns and its running αs, by the upcoming cosmic microwave background (CMB) polarization experiments that will provide plausible constraints on the quantity Δϕ during the horizon exit moment. In addition we discuss the relation between the local variation of the field and the possibilities of an eternal inflation. The results of the analysis are completely model independent.

Journal

Physical Review DAmerican Physical Society (APS)

Published: Jul 15, 2017

There are no references for this article.

Sorry, we don’t have permission to share this article on DeepDyve,
but here are related articles that you can start reading right now:

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off