The renowned British physicist, who died at 76, left behind a riddle that could eventually lead his successors to the theory of quantum gravity.| Quanta Magazine
The LIGO-Virgo-KAGRA collaboration has recorded the 200th gravitational wave candidate event of O4| LIGO Lab | Caltech
The "ringdown" radiation emitted by oscillating black holes has great scientific potential. By carefully predicting the frequencies and amplitudes of black hole quasinormal modes and comparing them with gravitational-wave data from compact binary mergers we can advance our understanding of the two-body problem in general relativity, verify the predictions of the theory in the regime of strong and dynamical gravitational fields, and search for physics beyond the Standard Model or new gravitati...| arXiv.org
Quasinormal modes of rapidly rotating black holes were recently computed in a generic effective-field-theory extension of general relativity with higher-derivative corrections. We exploit this breakthrough to perform the most complete search for signatures of new physics in black hole spectra to date. We construct a template that describes the post-merger gravitational-wave emission in comparable-mass binary black hole mergers at current detector sensitivity, notably including isospectrality ...| arXiv.org