TY - EJOUR AU - Tanhayi, Mohammad Reza AU - Mirabi, Sepideh PY - 2023 DA - November TI - Linear energy-momentum tensor for a scalar field in de Sitter space T2 - Journal of Theoretical and Applied Physics VL - 6 L1 - https://oiccpress.com/journal-of-theoretical-and-applied-physics/article/linear-energy-momentum-tensor-for-a-scalar-field-in-de-sitter-space/ DO - 10.1186/2251-7235-6-24 N2 - 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. IS - 1 PB - OICC Press KW - Momentum tensor in curved space, De Sitter spacetime, Energy, Gordon equation, Klein EN -