Inflation pressures

Article

Cahill, K; Podolský, J.

J. Phys. G: Nucl. Phys. 20(0), 571-577 (1994)

Abstract

If the sum of the energy density rho and thrice the pressure p is negative, then a Robertson-Walker universe can inflate or even oscillate. But the authors show at the one-loop level that in a generic grandly unified theory rho+3p cannot be negative at the absolute minimum of the finite-temperature effective potential. They discuss the implications of this result for inflation in two grandly unified theories and speculate on the effects of gravitational friction and anti-friction.

Keywords

Cosmology: Inflationary Universe

Institute authors

Podolský, Jiří

BibTeX

@article{UTF136,
  author        = {Cahill, K and Podolský, J.},
  title         = {{Inflation pressures}},
  journal       = {J. Phys. G: Nucl. Phys.},
  volume        = {20},
  number        = {0},
  pages         = {571-577},
  year          = {1994},
  doi           = {10.1088/0954-3899/20/4/005},
  url           = {http://www.iop.org/EJ/article/0954-3899/20/4/005/jg940405.pdf},
}