EFFECTS OF QUANTUM FIELDS ON SINGULARITIES AND PARTICLE HORIZONS IN THE EARLY UNIVERSE
198315 pages
Published in:
- Phys.Rev.D 28 (1983) 271-285
Citations per year
Abstract: (APS)
The back-reaction problem for conformally invariant free quantum fields in spatially flat homogeneous and isotropic spacetimes containing classical radiation is solved. The solutions depend upon two regularization parameters which we call α and β. Only solutions which at late times approach the appropriate solution to the field equations of general relativity are considered. For all α and β with α>0 there are many such solutions, while for all α and β with α<0 there is only one such solution. For β>3α>0, there is always one solution which undergoes a "time-symmetric bounce" and which contains no singularities or particle horizons. For α>0 there is always at least one solution which begins with an initial singularity and which has no particle horizons. For all α and β there is always at least one solution which begins with an initial singularity.- COSMOLOGICAL MODEL
- general relativity
- INVARIANCE: CONFORMAL
- FIELD THEORY: SPACE-TIME
- BOUNDARY CONDITION
- RADIATION: EFFECT
- GRAVITATION
- QUANTUM MECHANICS
- FIELD EQUATIONS: SOLUTION
- NUMERICAL CALCULATIONS
References(15)
Figures(0)