TY - JOUR
T1 - Reconstructing warm inflation
AU - Herrera, Ramón
N1 - Publisher Copyright:
© 2018, The Author(s).
PY - 2018/3/1
Y1 - 2018/3/1
N2 - The reconstruction of a warm inflationary universe model from the scalar spectral index nS(N) and the tensor to scalar ratio r(N) as a function of the number of e-folds N is studied. Under a general formalism we find the effective potential and the dissipative coefficient in terms of the cosmological parameters nS and r considering the weak and strong dissipative stages under the slow roll approximation. As a specific example, we study the attractors for the index nS given by nS- 1 ∝ N- 1 and for the ratio r∝ N- 2, in order to reconstruct the model of warm inflation. Here, expressions for the effective potential V(ϕ) and the dissipation coefficient Γ (ϕ) are obtained.
AB - The reconstruction of a warm inflationary universe model from the scalar spectral index nS(N) and the tensor to scalar ratio r(N) as a function of the number of e-folds N is studied. Under a general formalism we find the effective potential and the dissipative coefficient in terms of the cosmological parameters nS and r considering the weak and strong dissipative stages under the slow roll approximation. As a specific example, we study the attractors for the index nS given by nS- 1 ∝ N- 1 and for the ratio r∝ N- 2, in order to reconstruct the model of warm inflation. Here, expressions for the effective potential V(ϕ) and the dissipation coefficient Γ (ϕ) are obtained.
UR - http://www.scopus.com/inward/record.url?scp=85044362622&partnerID=8YFLogxK
U2 - 10.1140/epjc/s10052-018-5741-0
DO - 10.1140/epjc/s10052-018-5741-0
M3 - Article
AN - SCOPUS:85044362622
SN - 1434-6044
VL - 78
JO - European Physical Journal C
JF - European Physical Journal C
IS - 3
M1 - 245
ER -