Relic gravitational waves and extended inflation

Details Relic gravitational waves and extended inflation Relic gravitational waves and extended inflation

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990rgwe.rept.....t&link_type=abstract

Unknown

Computer Science

Bubbles, Cosmology, Gas-Liquid Interactions, Gravitational Waves, Gravity Waves, Universe, Collisions, Flux Density, Nucleation, Percolation

Scientific paper

In extended inflation, a new version of inflation where the transition from the false-vacuum phase to a radiation-dominated Universe is accomplished by bubble nucleation and percolation, bubble collisions supply a potent-and potentially detectable-source of gravitational waves. The present energy density in relic gravity waves from bubble collisions is expected to be about 10(exp -5) of closure density-many orders of magnitude greater than that of the gravity waves produced by quantum fluctuations. Their characteristic wavelength depends upon the reheating temperature T(sub RH): lambda is approximately 10(exp 4) cm (10(exp 14) GeV/T(sub RH)). If large numbers of black holes are produced, a not implausible outcome, they will evaporate producing comparable amounts of shorter wavelength waves, lambda is approximately 10(exp -6) cm (T(sub RH)/10(exp 14) GeV).

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