scholarly journals Braneworld inflation with an effective α -attractor potential

2019 ◽  
Vol 99 (10) ◽  
Author(s):  
Nur Jaman ◽  
Kairat Myrzakulov
Keyword(s):  
Braneworld Inflation

Publisher’s Note: Curvaton reheating in tachyonic braneworld inflation [Phys. Rev. D72, 083515 (2005)]

2005 ◽  
Vol 72 (10) ◽  
Author(s):  
Cuauhtemoc Campuzano ◽  
Sergio del Campo ◽  
Ramón Herrera
Keyword(s):  
Braneworld Inflation

Observational constraints on reheating in braneworld inflation

2019 ◽  
Vol 34 (27) ◽  
pp. 1950152
Author(s):  
Z. Sakhi ◽  
A. Safsafi ◽  
M. Ferricha-Alami ◽  
H. Chakir ◽  
M. Bennai
Keyword(s):  
Cosmological Parameters ◽  
High Energy ◽  
Observational Constraints ◽  
Brane Tension ◽  
Energy Limit ◽  
Polynomial Potential ◽  
High Energy Limit ◽  
Slow Roll ◽  
Braneworld Inflation ◽  
Best Fit

The reheating era after inflation is analyzed in the framework of the braneworld models. We study reheating by calculating the reheating temperature in a braneworld inflation for various cosmological parameters. The variation of reheating [Formula: see text]-folding number and reheating temperature were obtained and analyzed as function of a spectrum of perturbation for a polynomial potential [Formula: see text]. We have applied the slow-roll approximation in the high energy limit to constraint the parameter potentials by confronting our results to recent Planck 2018 observations. We have shown that in general the best values of the predicted reheating temperature is of the order [Formula: see text] GeV, with a brane tension [Formula: see text] GeV4. We have also shown that the polynomial potential in the case [Formula: see text] provides the best fit results with recent observational constraints.

scholarly journals Reheating and gravitino production in braneworld inflation

2005 ◽  
Vol 72 (2) ◽  
Author(s):  
Edmund J. Copeland ◽  
Osamu Seto
Keyword(s):  
Braneworld Inflation

scholarly journals Constraints on braneworld inflation from CMB anisotropies

2004 ◽  
Vol 2004 (03) ◽  
pp. 001-001 ◽  
Author(s):  
Shinji Tsujikawa ◽  
Andrew R Liddle
Keyword(s):  
Braneworld Inflation

Hyperbolic Potential with Original Chaplygin Gas in Braneworld Inflation

2019 ◽  
Vol 25 (2) ◽  
pp. 172-178
Author(s):  
I. Khay ◽  
F. Salamate ◽  
A. Safsafi ◽  
H. Chakir ◽  
M. Bennai
Keyword(s):  
Chaplygin Gas ◽  
Hyperbolic Potential ◽  
Braneworld Inflation

Effect of brane tension on reheating parameters in small field inflation according to Planck-2018 data

2020 ◽  
Vol 35 (30) ◽  
pp. 2050191
Author(s):  
Z. Sakhi ◽  
K. El Bourakadi ◽  
A. Safsafi ◽  
M. Ferricha-Alami ◽  
H. Chakir ◽  
...  
Keyword(s):  
Equation Of State ◽  
State Parameter ◽  
Small Field ◽  
Brane Tension ◽  
Effective Equation ◽  
Equation Of State Parameter ◽  
Joint Constraints ◽  
Braneworld Inflation ◽  
Additional Constraints

We study a new reheating approach in the framework of standard and braneworld inflation. Using the technique developed in Ref. 1, we consider a small field arctangent potential and show that this approach can be similarly applied within Randall–Sundrum type 2 scenario and provide additional constraints to reheating temperature [Formula: see text] and duration of reheating [Formula: see text]. We found that in brane case the effective equation-of-state parameter [Formula: see text] must be close to 1, to satisfy Planck-2018 joint constraints on [Formula: see text].

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