Abstract： Taking the cosmological expansion rate directly as a function of the inflaton field instead of as a function of time, we present a new exact solution to Einstein's equations that describe the evolution of inflationary universe model. This includes a solution which has nearly exponential inflation for , and then develops smoothly towards radiation-like evolution for . The inflation is driven by the evolution of scalar field with inflation potential, V( ) = V0 - m2/2 + λ/4. The spectral index of the scalar density, ns, is computed and ns lies well inside the limits set by the cosmic background explorer satellite.
(Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.))
引用本文:
WANG Wen-Fu. An Exact Solution with Exit in the New Inflationary Universe Model[J]. 中国物理快报, 2001, 18(7): 997-999.
WANG Wen-Fu. An Exact Solution with Exit in the New Inflationary Universe Model. Chin. Phys. Lett., 2001, 18(7): 997-999.
2001, Vol. 18 
