5 papers
Modified Teukolsky Formalism for Extreme Mass-Ratio Inspirals in Higher-Derivative Gravity
Chaoyi Yang, Neev Khera, Dongjun Li +1
In this work, we study a model problem involving a point particle inspiraling into a non-rotating black hole in higher-derivative theories of gravity. In such theories, both the ba…
Decomposition of Schwarzschild Green's Function
Junquan Su, Neev Khera, Marc Casals +3
We present a formulation of the spherically decomposed Green's function for a Schwarzschild black hole, based on a decomposition into two components, and , based on thei…
A nonlinear voice from GW250114 ringdown
Yi-Fan Wang, Sizheng Ma, Neev Khera +1
The detection of quadratic quasi-normal modes would provide a direct probe into black hole nonlinear perturbations. We report the first observational evidence of a set of quadratic…
From spatial to null infinity: Connecting initial data to peeling
Berend Schneider, Neev Khera
The asymptotic structure of space-time is studied by imposing conditions on the asymptotics of the metric. These conditions are weak enough to include large classes of physically r…
Quadratic Mode Couplings in Rotating Black Holes and Their Detectability
Neev Khera, Sizheng Ma, Huan Yang
Quadratic quasinormal modes encode fundamental properties of black hole spacetimes. They are also one of the key ingredients of nonlinearities of General Relativity in the ringdown…