11 papers
Generalized Unitarity Method for Worldline Field Theory
Vincent F. He, Julio Parra-Martinez
We present a generalized unitarity method for theories of point-particle worldlines coupled to gravity, analogous to that of scattering amplitudes in quantum field theory. This met…
Resummation of Universal Tails in Gravitational Waveforms
Mikhail M. Ivanov, Yue-Zhou Li, Julio Parra-Martinez +1
We present a formula for the universal anomalous scaling of the multipole moments of a generic gravitating source in classical general relativity. We derive this formula in two ind…
Soft Theorems from Higher Symmetries
Jonah Berean-Dutcher, Maria Derda, Julio Parra-Martinez
We describe the connection between spontaneously-broken higher symmetries and soft theorems for scattering amplitudes of their associated Nambu-Goldstone bosons. Our main result is…
Gravitational Raman Scattering: a Systematic Toolkit for Tidal Effects in General Relativity
Mikhail M. Ivanov, Yue-Zhou Li, Julio Parra-Martinez +1
We present a framework for systematic computations of scattering amplitudes for gravitational Raman scattering, -- the inelastic scattering of massless fields off compact relativis…
GSO Defects: IIA/IIB Walls and the Surprisingly Stable -Brane
Jonathan J. Heckman, Jacob McNamara, Julio Parra-Martinez +1
The recently proposed Swampland Cobordism Conjecture predicts the existence of new non-supersymmetric objects which supplement the spectrum of low-energy gravitational effective fi…
Scattering perspective on gravitational lensing
Mariana Carrillo Gonzalez, Valerio De Luca, Alice Garoffolo +2
Gravitational waves propagating across gravitational potentials undergo lensing effects that, in the wave-optics regime, manifest as frequency-dependent amplitude and phase modulat…