Model of a Decaying Cosmological Constant
Aug, 198919 pages
Published in:
- Phys.Rev.D 42 (1990) 361-370
Report number:
- UT-KOMABA-89-20
Citations per year
Abstract: (APS)
A theoretical model is proposed for decay of the cosmological constant, allowing a natural interpretation that the cosmological constant is small at present simply because our Universe is old. The model can be made consistent with inflation, the observed time nonvariability of the gravitational constant, as well as evidence for the standard cosmology. The crucial ingredients are an extended theory of a scalar field and a careful analysis of conformal transformations.- cosmological model
- cosmological constant
- fundamental constant: time dependence
- field theory: scalar
- inflation
- Einstein equation
- transformation: conformal
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