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Tahereh Azizi

Tahereh Azizi

Academic rank: Assistant Professor
ORCID:
Education: PhD.
ScopusId:
Faculty: Science
Address:
Phone: 35302480

Research

Title
Complete set of GW polarization modes in higher-derivative f (R,R, T) theories of gravity
Type
JournalPaper
Keywords
gravitational waves ,Newman–Penrose analysis, modified gravity
Year
2021
Journal The European Physical Journal Plus
DOI
Researchers Mojtaba Haghshenas ، Tahereh Azizi

Abstract

In this paper, we investigate the gravitational waves in a particular class of alternative theories of gravity which is known as higher-derivative f (R,R, T ) gravity theory. In low curvature regime and by using Newman–Penrose analysis for the linear order of the field equations, we show that in addition to the usual plus and cross polarization modes which appear in general relativity, all other modes can exist too. Actually, according to our analysis, in such a theory by choosing the proper values from the parameter space of the model, a complete set of gravitational wave polarization modes can be produced in this concept.