The Hadron Barrier in Cosmology and Gravitational Collapse
Abstract
It is shown that the early stages of a big-bang cosmology are hadron-dominated if the density of hadron states per unit mass interval, p (m), increases at least as fast as m ' and if the initial gravitational anisotropy is not large. It is further shown that if these conditions are satisfied, then quantum effects must modify the classical equations of general relativity at times t 1(t23 5 before the attainment of the singularities predicted in classical relativistic cosmologies and stellar collapse (i.e., before the well- known modifications due to quantum fluctuations of the metric at times l0- s).
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 1971
- DOI:
- 10.1086/180845
- Bibcode:
- 1971ApJ...170L..81B