Love beyond Einstein: metric reconstruction and Love number in quadratic gravity using WEFT
Sign Up to like & getrecommendations! Published in 2025 at "Journal of High Energy Physics"
DOI: 10.1007/jhep11(2025)155
Abstract: We study tidal Love numbers of static black holes in four-dimensional quadratic theory of gravity, extending the result of GR. We use worldline effective field theory (WEFT) methods to compute metric perturbations from one-point functions,… read more here.
Keywords: einstein metric; love number; gravity; love beyond ... See more keywords
18.6-year tidal variations observed from 48-year Satellite Laser Ranging (SLR)
Sign Up to like & getrecommendations! Published in 2025 at "Geophysical Journal International"
DOI: 10.1093/gji/ggaf124
Abstract: Analysis of the 48-year of satellite laser ranging (SLR) data of multiple satellites shows that long-term variations in the Earth's dynamical oblateness represented by the second-degree zonal harmonic J2 is best characterized by the superposition… read more here.
Keywords: year; love number; ranging slr; year satellite ... See more keywords
Tidal Love number of neutron stars with conformal coupling
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DOI: 10.1103/physrevd.104.084098
Abstract: In this present work, we suggest studying neutron star with a conformal coupling by using the analytical expressions of realistic equations of state. The equations of perturbed and nonperturbed metrics, scalar field and the pressure… read more here.
Keywords: number neutron; tidal love; love number; conformal coupling ... See more keywords
Quantum Love numbers
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review D"
DOI: 10.1103/physrevd.105.024043
Abstract: The response of a gravitating object to an external tidal field is encoded in its Love numbers, which identically vanish for classical blackholes (BHs). Here we show, using standard time-independent quantum perturbation theory, that for… read more here.
Keywords: love number; quantum love; love numbers;