Exponential potential for an inflaton with nonminimal kinetic
coupling and its supergravity embedding

J 2014

Exponential potential for an inflaton with nonminimal kinetic coupling and its supergravity embedding

FARAKOS, Fotis a Iannis DALIANIS

Základní údaje

Originální název

Exponential potential for an inflaton with nonminimal kinetic coupling and its supergravity embedding

Autoři

FARAKOS, Fotis (300 Řecko, garant, domácí) a Iannis DALIANIS (300 Řecko)

Vydání

Physical review D, American Physical Society, 2014, 1550-7998

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10301 Atomic, molecular and chemical physics

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Link to the article in the APS website

Impakt faktor

Impact factor: 4.643

Kód RIV

RIV/00216224:14310/14:00074484

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1103/PhysRevD.90.083512

UT WoS

000344030000002

EID Scopus

2-s2.0-84908242123

Klíčová slova anglicky

POWER-LAW INFLATION; D-TERM INFLATION; MINIMAL SUPERGRAVITY; GAUGINO CONDENSATION; SUPERSYMMETRY; COSMOLOGY; BREAKDOWN; MATTER

Štítky

AKR, rivok

Změněno: 8. 4. 2015 12:36, Ing. Andrea Mikešková

Anotace

V originále

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.

Návaznosti

GBP201/12/G028, projekt VaV

Název: Ústav Eduarda Čecha pro algebru, geometrii a matematickou fyziku

Investor: Grantová agentura ČR, Ústav Eduarda Čecha pro algebru, geometrii a matematickou fyziku

Citovat

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.

@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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