241 citations · 3.1k across the 105 of their papers we have counts for
7 papers · 1 filter
A perturbative and gauge invariant treatment of gravitational wave memory
Lydia Bieri, David Garfinkle
We present a perturbative treatment of gravitational wave memory. The coordinate invariance of Einstein's equations leads to a type of gauge invariance in perturbation theory. As w…
Matters of Gravity, The Newsletter of the Topical Group on Gravitation of the American Physical Society, Volume 42, Fall 2013
David Garfinkle
GGR News: we hear that..., by David Garfinkle What's new in LIGO, by David Shoemaker News from NSF, by Pedro Marronetti Citation counts and indicies: Beware of bad data, by Cliffor…
Neutrino Radiation Showing a Christodoulou Memory Effect in General Relativity
Lydia Bieri, David Garfinkle
We describe neutrino radiation in general relativity by introducing the energy-momentum tensor of a null fluid into the Einstein equations. Investigating the geometry and analysis…
Nonperturbative analysis of the evolution of cosmological perturbations through a nonsingular bounce
BingKan Xue, David Garfinkle, Frans Pretorius +1
In bouncing cosmology, the primordial fluctuations are generated in a cosmic contraction phase before the bounce into the current expansion phase. For a nonsingular bounce, curvatu…
An electromagnetic analog of gravitational wave memory
Lydia Bieri, David Garfinkle
We present an electromagnetic analog of gravitational wave memory. That is, we consider what change has occurred to a detector of electromagnetic radiation after the wave has passe…
Matters of Gravity, The Newsletter of the Topical Group on Gravitation of the American Physical Society, Volume 41, Winter 2013
David Garfinkle
GGR News: we hear that... 100 years ago GGR program at the APS meeting in Denver, CO
Killing-Yano tensors in spaces admitting a hypersurface orthogonal Killing vector
David Garfinkle, E. N. Glass
Methods are presented for finding Killing-Yano tensors, conformal Killing-Yano tensors, and conformal Killing vectors in spacetimes with a hypersurface orthogonal Killing vector. T…