Nonperturbative strong-field effects in tensor-scalar theories of gravitation
Abstract
It is shown that a wide class of tensor-scalar theories can pass the present weak-field gravitational tests and exhibit nonperturbative strong-field deviations away from general relativity in systems involving neutron stars. This is achieved without requiring either large dimensionless parameters, fine tuning, or the presence of negative-energy modes. This gives greater significance to tests of the strong gravitational field regime, notably binary pulsar experiments.
- Publication:
-
Physical Review Letters
- Pub Date:
- April 1993
- DOI:
- 10.1103/PhysRevLett.70.2220
- Bibcode:
- 1993PhRvL..70.2220D
- Keywords:
-
- Field Theory (Physics);
- Gravitation Theory;
- Neutron Stars;
- Perturbation Theory;
- Scalars;
- Tensor Analysis;
- Gravitational Fields;
- Pulsars;
- Relativistic Theory;
- String Theory;
- Astrophysics;
- 04.50.+h;
- 97.60.Jd;
- Gravity in more than four dimensions Kaluza-Klein theory unified field theories;
- alternative theories of gravity;
- Neutron stars