| FARAKOS, Fotis a Iannis DALIANIS. Exponential potential for an inflaton with nonminimal kinetic coupling and its supergravity embedding. Physical review D. American Physical Society, 2014, roč. 90, č. 8, s. "083512"-"083522", 11 s. ISSN 1550-7998. Dostupné z: https://dx.doi.org/10.1103/PhysRevD.90.083512. |
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@article{1231911,
author = {Farakos, Fotis and Dalianis, Iannis},
article_number = {8},
doi = {http://dx.doi.org/10.1103/PhysRevD.90.083512},
keywords = {POWER-LAW INFLATION; D-TERM INFLATION; MINIMAL SUPERGRAVITY; GAUGINO CONDENSATION; SUPERSYMMETRY; COSMOLOGY; BREAKDOWN; MATTER},
language = {eng},
issn = {1550-7998},
journal = {Physical review D},
title = {Exponential potential for an inflaton with nonminimal kinetic coupling and its supergravity embedding},
url = {http://dx.doi.org/10.1103/PhysRevD.90.083512},
volume = {90},
year = {2014}
}
TY - JOUR
ID - 1231911
AU - Farakos, Fotis - Dalianis, Iannis
PY - 2014
TI - Exponential potential for an inflaton with nonminimal kinetic coupling and its supergravity embedding
JF - Physical review D
VL - 90
IS - 8
SP - "083512"-"083522"
EP - "083512"-"083522"
PB - American Physical Society
SN - 15507998
KW - POWER-LAW INFLATION
KW - D-TERM INFLATION
KW - MINIMAL SUPERGRAVITY
KW - GAUGINO CONDENSATION
KW - SUPERSYMMETRY
KW - COSMOLOGY
KW - BREAKDOWN
KW - MATTER
UR - http://dx.doi.org/10.1103/PhysRevD.90.083512
L2 - http://dx.doi.org/10.1103/PhysRevD.90.083512
N2 - In the light of new observational results, we discuss the status of the exponential potentials driving inflation. We depart from the minimal scenario and study an inflaton kinetically coupled to the Einstein tensor. We find that in this case, the exponential potentials are well compatible with observations. Their predictions coincide with those of the chaotic-type quadratic potential for an inflaton minimally coupled to gravity. We show that there exists a simple mapping between the two models. Moreover, a novel aspect of our model is that it features a natural exit from the inflationary phase even in the absence of a minimum. We also turn to supergravity and motivate this sort of potential and the nonminimal kinetic coupling as possible effective dilaton theories.
ER -
FARAKOS, Fotis a Iannis DALIANIS. Exponential potential for an inflaton with nonminimal kinetic coupling and its supergravity embedding. \textit{Physical review D}. American Physical Society, 2014, roč.~90, č.~8, s.~''083512''-''083522'', 11 s. ISSN~1550-7998. Dostupné z: https://dx.doi.org/10.1103/PhysRevD.90.083512.
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