Inflation from warped space

By Xingang Chen. 2005

180 citations recorded by the source corpus.

A long period of inflation can be triggered when the inflaton is held up on the top of a steep potential by the infrared end of a warped space. We first study the field theory description of such a model. We then embed it in the flux stabilized string compactification. Some special effects in the throat reheating process by relativistic branes are discussed. We put all these ingredients into a multi-throat brane inflationary scenario. The resulting cosmic string tension and a multi-throat slow-roll model are also discussed.

Subfields: Astronomy and Astrophysics, Instrumentation, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/c9d34692f8c9a557fa4d6e3ffff907054bb36b69

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Citations in the corpus

Observational signatures and non-Gaussianities of general single-field inflation (2006, methodology): “In the region where the back-reaction [14,16,60] and stringy physics [16,17] can be ignored, the effective action has the following form”
Inflation and String Theory (2014, background): “This problem cannot be relegated to unobservably large angular scales: the maximum number of e-folds N e that can be produced after the EFT computation of the perturbations becomes valid is [712]”
Primordial Non-Gaussianities from Inflation Models (2010, background): “In some DBI inflation models [86, 92], the speed limit of the inflaton and the scale of new physics are both related to the warp factor in such a way that the local warped new scale can drop near or even below the Hubble energy scale in certain epoch of inflation.”
Cosmology and Fundamental Physics with the Euclid Satellite (2012, background): “, [37, 300, 301, 149] can be characterized by a primordial bispectrum whose amplitude varies significantly over the range of scales accessible by cosmological probes.”
FIVE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE OBSERVATIONS: COSMOLOGICAL INTERPRETATION (2008, unknown): “…ghost inflation (Arkani-Hamed et al. 2004), DBI inflation (Silverstein & Tong 2004; Alishahiha et al. 2004), or infrared-DBI (IR-DBI) inflation (Chen 2005b,a), as the tilt, ns, depends also on the derivative of the effective speed of sound of a scalar field (for recent constraints on this…”
Beyond the Cosmological Standard Model (2014, unknown): “A particular functional form of P (X,φ) which has attracted considerable attention are Dirac–Born–Infeld (DBI) models, which arise in the action for D-branes in string theory [138, 142, 443, 444].”
Large-volume flux compactifications: Moduli spectrum and D3/D7 soft supersymmetry breaking (2005, background): “In particular, recent models of inflation in the KKLT scenario either coming from brane/antibrane systems [54, 67, 68, 69, 70, 71, 72, 73 ] or the racetrack inflation [74, 75], could be reconsidered in view of our results.”
Quasi-Single Field Inflation and Non-Gaussianities (2009, methodology): “This happens for example in the single field inflation models with higher derivative interactions or certain multifield generalizations [13– 16], such as DBI inflation [17,18] or k-inflation [19,20].”