Linear energy-momentum tensor for a scalar field in de Sitter space
الموضوعات : Journal of Theoretical and Applied Physics
Mohammad Reza Tanhayi
1
(Department of Physics, Islamic Azad University)
Sepideh Mirabi
2
(Department of Physics, Islamic Azad University)
الکلمات المفتاحية: Energy, momentum tensor in curved spac, de Sitter spacetime, Klein, Gordon equation,
ملخص المقالة :
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.