Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"modified theories of gravity"”.
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Classical, quantum and numerical aspects of modified theories of gravity
In this thesis, we examine some specific aspects of two classes of modified gravity theories: ghostfree infinite-derivative gravity and so-called f(R) gravity. Regarding the former, we consider the four-dimensional theory at the level of the quadratic action and study the single graviton exchange …
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Uncovering gravitational wave signatures of modified theories of gravity and exotic matter
The observation of the first gravitational-wave (GW) event almost a decade ago opened a new promising window to our scientific endeavours in understanding the deepest mysteries of our Universe and its history. Using the foundations of general relativity (GR), we are now in the position of being …
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Gravitational collapse, compact objects and gravitational waves in General Relativity and modified gravity
Since the upgrade of the two LIGO Detectors it has been an exciting time for General Relativity (GR) research, as soon after they were upgraded to advanced status GW150914, the first gravitational wave signal from the inspiral and merger of two black holes was detected. The following consistent …
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Astrophysical tests of modified gravity
Einstein's theory of general relativity has been the accepted theory of gravity for nearly a century but how well have we really tested it? The laws of gravity have been probed in our solar system to extremely high precision using several different tests and general relativity has passed each one …
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Analytic Modelling of Gravitational-Wave Source in General Relativity and Alternative Theories of Gravity
The first direct detection of gravitational waves (GWs) by LIGO in 2015 opened up new avenues for probing and better understanding the strong-field dynamics of gravity. The continuous improvement in the sensitivity of LIGO, Virgo and now KAGRA along with the forthcoming next-generation detectors …
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Testing general relativity and cosmology with gravitational waves: polarizations, propagation speeds, and backgrounds
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms