Model Building Potentials steep at early times and shallow at late stages Potentials shallow at early stages and steep at late times B. Spokoiny, PLB315, 40(1993) PJ. E. Peebles, A Vilenkin, PRD 60(1999) V Sahni, MS, T Souradeep, PRD65(2001 KDimopoulos, F Valle, astro-ph/0111417 W. Hossain et al, IJMPD24(2015) 1/26/2021 BRICS 2017
1/26/2021 BRICS_2017 Model Building I. Potentials steep at early times and shallow at late stages II. Potentials shallow at early stages and steep at late times B.Spokoiny, PLB315,40(1993) P.J.E. Peebles, A. Vilenkin, PRD 60(1999) V.Sahni, MS, T. Souradeep, PRD65(2001) K.Dimopoulos, F. Valle,astro-ph/0111417 W. Hossain et al, IJMPD24(2015)
Quintessential inflation Brane world model V() Damping STG pb pb 2入B 1+V/AB E=ERW +V/2AB)2 7=7FR(1+V/2入B) V= Vo(coshao/Mp-1)P;p>0 MS,V Sahni, Phys. Rev. D70, 083513 (2004) Phys. Rev. D 65, 023518 (2002): MS,. Dadhich TShiromizu, PLB568, 118(2003). MS, V. Sahni, Phys. Rev. D70(2004)083513 1/26/2021 BRICS 2017
1/26/2021 BRICS_2017 Quintessential inflation Brane world model MS, V. Sahni, Phys. Rev. D 70, 083513 (2004); Phys. Rev. D 65, 023518 (2002); MS, N. Dadhich, T.Shiromizu, PLB568, 118(2003). MS, V. Sahni, Phys.Rev. D70 (2004) 083513
Quintessential Inflation (instant preheating) Logp(a/a 1/26/2021 BRICS 2017
1/26/2021 BRICS_2017 Quintessential Inflation (instant preheating)
OBSERVATIONAL CONSTRAINTS 4 24 N=70.ms=0.94,r=0.34 1/26/2021 BRICS 2017
1/26/2021 BRICS_2017 OBSERVATIONAL CONSTRAINTS
GAUSS BONNET IN THE BULK effort to rescue the model p>>Mn→H2~p23(GB) B>>p>>A→H2p2(RS) p<<入→H2p(GR J-F. Dufaux, J. Lidsey Roy Maartens, MS, PRD70(2004)083525 1/26/2021 BRICS 2017
1/26/2021 BRICS_2017 GAUSS BONNET IN THE BULK effort to rescue the model J-F. Dufaux, J. Lidsey, Roy Maartens, MS, PR D70 (2004) 083525