Radiative Inflation and Dark Energy
2011 (English)In: Physical Review D, ISSN 1550-7998, Vol. 84, no 8Article in journal (Refereed) Published
We propose a model based on radiative symmetry breaking that combines inflation with dark energy and is consistent with the Wilkinson Microwave Anisotropy Probe 7-year regions. The radiative inflationary potential leads to the prediction of a spectral index 0.955 less than or similar to n(S) less than or similar to 0.967 and a tensor to scalar ratio 0.142 less than or similar to r less than or similar to 0.186, both consistent with current data but testable by the Planck experiment. The radiative symmetry breaking close to the Planck scale gives rise to a pseudo Nambu-Goldstone boson with a gravitationally suppressed mass which can naturally play the role of a quintessence field responsible for dark energy. Finally, we present a possible extra dimensional scenario in which our model could be realized.
Place, publisher, year, edition, pages
2011. Vol. 84, no 8
PARTICLE-PHYSICS MODELS, NAMBU-GOLDSTONE BOSONS, SUPERSYMMETRY BREAKING, QUANTUM CORRECTIONS, SYMMETRY-BREAKING, COSMOLOGY
Astronomy, Astrophysics and Cosmology
IdentifiersURN: urn:nbn:se:kth:diva-50381DOI: 10.1103/PhysRevD.84.083524ISI: 000296888900001OAI: oai:DiVA.org:kth-50381DiVA: diva2:461700