Affiliation:
1. Department of Physics, Amirkabir University of Technology, Tehran, Iran
Abstract
The interaction of massless minimally coupled scalar field and spinor field [Formula: see text] is investigated and the behavior of interaction and scattering matrix in Minkowski limit is studied. It is seen that the massless minimally coupled scalar field operator, the interaction Lagrangian and the scattering matrix become zero. Also, the incoming and outgoing spinor fields, which in de Sitter spacetime are different and are interacted with massless minimally coupled scalar field, in null curvature limit are the same and no interaction seen. In other words, the massless minimally coupled scalar field is dependent on curvature and can be considered as a part of a gravitational field.
Publisher
World Scientific Pub Co Pte Lt
Subject
Space and Planetary Science,Astronomy and Astrophysics,Mathematical Physics