Perturbatively around flat space, the scattering amplitudes of gravity are related to those of
Yang–Mills by colour-kinematic duality, under which gravitational amplitudes are obtained …

Under certain conditions, spin waves can be channeled into a broad angular spectrum of
wave vectors, where the direction of the group velocity becomes independent of those wave …

The usual gravitational wave memory effect can be understood as a change in the
separation of two initially comoving observers due to a burst of gravitational waves. Over the …

A bstract We show that large gauge transformations modify the structure of momentum
conservation leading to non-vanishing three-point amplitudes in a simple toy model of a …

The gravitational wave memory effect is characterized by the permanent relative
displacement of a pair of initially comoving test particles that is caused by the passage of a …

Gravitational wave memory is said to arise when a gravitational wave burst produces
changes in a physical system that persist even after that wave has passed. This paper …

We study the quantum channel between two localized first-quantized systems that
communicate in 3+ 1 dimensional Schwarzschild spacetime via a quantum field. We analyze …

We embed the Penrose limit into the Weyl classical double copy. Thereby, we provide a lift
of the double copy properties of plane wave spacetimes into black hole geometries and we …

We report an analytical example of the gravitational wave memory effect in exact plane wave
spacetimes. A square pulse profile is chosen which gives rise to a curved wave region …

The motion of a small compact object in a curved background spacetime deviates from a
geodesic due to the action of its own field, giving rise to a self-force. This self-force may be …