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Energy momentum tensor of a non-minimally coupled scalar from the equivalence of the Einstein and Jordan frames

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arxiv 2109.14258 v2 pith:S4XE3B7J submitted 2021-09-29 gr-qc astro-ph.COhep-th

Sk. Moinuddin , Pradip Mukherjee , Anirban Saha , Amit Singha Roy This is my paper · ORCID
classification gr-qcastro-ph.COhep-th
keywords coupledgravitynmcteinsteinenergyequivalenceframejordan
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Unlike the minimally coupled gravity theory where matter is coupled with gravity in such a manner so that one can differentiate the matter and gravity sector uniquely, the non-minimally coupled theories (NMCT) are distinguished by the intermingling of two. As a consequence of this the calculation of the energy momentum tensor (EMT) in NMCT is beset with an arbitrariness. In this paper we provide an algorithm based on the well known equivalence between Jordan frame and Einstein frame formulations which enables us to construct the EMT for NMCT in a unique way.

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