Gravitational waves in minimal Maxwell $f(R)$ gravity
Salvatore Capozziello, Qingyu Gan
TL;DR
This paper explores how scalar fields convert into gravitational waves in minimal Maxwell $f(R)$ gravity within magnetic backgrounds, producing unique spectra that could be detected by future gravitational wave observatories.
Contribution
It introduces a novel mechanism for scalar-to-gravitational wave conversion in $f(R)$ gravity with magnetic fields, applicable to early universe and neutron star environments.
Findings
Generated gravitational waves have distinct power spectra.
Potential detectability by future experiments like DECIGO and BBO.
Application to primordial magnetic fields and neutron star magnetospheres.
Abstract
We discuss the conversion mechanism from scalar field to gravitational waves in magnetic background in gravity minimal coupled to the Maxwell electrodynamics. Applying the conversion in early universe with primordial magnetic field and the neutron star with strong magnetosphere, the generated gravitational waves, converted from the scalar field, exhibit distinct power spectra which can be potentially probed by future experiments such as DECIGO, BBO, CE and ET.
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