A mechanism for reducing the value of the cosmological constant
Abstract
A mechanism is presented for relaxing an initially large, positive cosmological constant to a value near zero. This is done by introducing a scalar field whose vacuum energy compensates for the initial cosmological constant. The compensating sector involves small mass scales but no unnatural fine-tuning of parameters. It is not clear how to incorporate this mechanism into a realistic cosmology.
Supported in part by Department of Energy Contract DE-AC03-ER03230 and by an Alfred P. Sloan Foundation Fellowship.- Publication:
-
Physics Letters B
- Pub Date:
- January 1985
- DOI:
- 10.1016/0370-2693(85)90459-9
- Bibcode:
- 1985PhLB..150..427A