Two-field high-scale inflation in a sub-Planckian region of field space

Journal Article · Sat May 15 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.81.103535· OSTI ID:21409722

Berg, Marcus ^[1]; Pajer, Enrico ^[2]; Sjoers, Stefan ^[1]

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1. Oskar Klein Center for Cosmoparticle Physics and Department of Physics, Stockholm University, Albanova University Center, SE-106 91 Stockholm (Sweden)
2. Institute for High Energy Phenomenology, Newman Laboratory of Elementary Particle Physics, Cornell University, Ithaca, New York 14853 (United States)

We present a simple two-field model of inflation and show how to embed it in string theory as a straightforward generalization of axion monodromy models. Phenomenologically, the predictions are equivalent to those of chaotic inflation, and, in particular, include observably large tensor modes. The whole high-scale large-field inflationary dynamics takes place within a region of field space that is parametrically sub-Planckian in diameter, hence improving our ability to control quantum corrections and achieve slow-roll inflation.

• OSTI ID: 21409722
• Journal Information: Physical Review. D, Particles Fields, Vol. 81, Issue 10; Other Information: DOI: 10.1103/PhysRevD.81.103535; (c) 2010 The American Physical Society; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHAOS THEORY
FORECASTING
INFLATIONARY UNIVERSE
SIMULATION
STRING MODELS
STRING THEORY
COMPOSITE MODELS
COSMOLOGICAL MODELS
EXTENDED PARTICLE MODEL
MATHEMATICAL MODELS
MATHEMATICS
M-THEORY
PARTICLE MODELS
QUARK MODEL