TY - JOUR
T1 - On the dynamics of the power law inflation due to an exponential potential
AU - Yokoyama, Jun'ichi
AU - Maeda, Kei ichi
PY - 1988/6/9
Y1 - 1988/6/9
N2 - The power law inflationary universe model induced by a scalar field with an exponential potential is studied. A dissipation term due to particle creation is introduced in the inflation's classical equation of motion. It is shown that the power index of the inflation increases prominently with an adequate viscosity. Consequently, even in theories with a rather steep exponential such as some supergravity or superstring models, it turns out that a "realistic" power law inflation (with a power index p{greater-than or approximate}10) is possible.
AB - The power law inflationary universe model induced by a scalar field with an exponential potential is studied. A dissipation term due to particle creation is introduced in the inflation's classical equation of motion. It is shown that the power index of the inflation increases prominently with an adequate viscosity. Consequently, even in theories with a rather steep exponential such as some supergravity or superstring models, it turns out that a "realistic" power law inflation (with a power index p{greater-than or approximate}10) is possible.
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U2 - 10.1016/0370-2693(88)90880-5
DO - 10.1016/0370-2693(88)90880-5
M3 - Article
AN - SCOPUS:0002027346
VL - 207
SP - 31
EP - 35
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 1
ER -