On Brane Inflation With Volume Stabilization
| Autor: | Jonathan P. Hsu, Sergey Prokushkin, Renata Kallosh |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2003 |
| Předmět: |
High Energy Physics - Theory
FOS: Physical sciences General Relativity and Quantum Cosmology (gr-qc) Astrophysics::Cosmology and Extragalactic Astrophysics String theory Astrophysics 01 natural sciences General Relativity and Quantum Cosmology Theoretical physics High Energy Physics::Theory High Energy Physics - Phenomenology (hep-ph) 0103 physical sciences Brane cosmology 010306 general physics Mathematics::Symplectic Geometry Physics Compactification (physics) 010308 nuclear & particles physics Astrophysics (astro-ph) Small deviations Astronomy and Astrophysics Supersymmetry Inflaton High Energy Physics - Phenomenology High Energy Physics - Theory (hep-th) Brane |
| Popis: | The distance between BPS branes in string theory corresponds to a flat direction in the effective potential. Small deviations from supersymmetry may lead to a small uplifting of this flat direction and to brane inflation. However, this scenario can work only if the BPS properties of the branes and the corresponding flatness of the inflaton potential are preserved in the theories with the stable volume compactification. We present an ``inflaton trench'' mechanism that keeps the inflaton potential flat due to shift symmetry, which is related to near BPS symmetry in our model. 12 pages, 2 figures |
| Databáze: | OpenAIRE |
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