Linear energy-momentum tensor for a scalar field in de Sitter space

محورهای موضوعی : Journal of Theoretical and Applied Physics

Mohammad Reza Tanhayi ¹ , Sepideh Mirabi ²

1 - Department of Physics, Islamic Azad University
2 - Department of Physics, Islamic Azad University

تاریخ انتشار : 1391/09/11

کلید واژه: Energy, momentum tensor in curved spac, de Sitter spacetime, Klein, Gordon equation,

چکیده مقاله :

AbstractIn this work, under a small perturbation of the background metric with the squeezing of other fields (scalar field in our case), the linear form of the energy-momentum tensor is calculated in terms of the perturbation factor. The linear form of the Klein-Gordon equation for a scalar field with both minimally and conformally coupled cases in de Sitter and flat metrics are also calculated.