18 papers
Relativity for Retired Engineers
David Garfinkle
We provide some guidance and examples to clear up common misconceptions about special relativity. These misconceptions often come from trying to express the truths of special relat…
The radiation zone in general relativity
David Garfinkle
The radiation zone in electrodynamics is the region far enough away from the charges that the part of the field dominates over the piece. This concept is key in exp…
Relative velocity in special relativity and quantum field theory
David Garfinkle
A derivation of the relative velocity used in the definition of the relativistic cross-section is given in terms of manifestly Lorentz invariant quantities. Along the way we find t…
Asymptotic behavior of unstable perturbations of the Fubini-Study metric in Ricci flow
David Garfinkle, James Isenberg, Dan Knopf +1
Kröncke has shown that the Fubini-Study metric is an unstable generalized stationary solution of Ricci flow [Krö20]. In this paper, we carry out numerical simulations which indicat…
Matters of Gravity: The Newsletter of the Division of Gravitational Physics of the American Physical Society. Number 52. December 2018
David Garfinkle
we hear that..., by David Garfinkle APS April Meeting, by David Garfinkle
Matters of Gravity, The Newsletter of the Division of Gravitational Physics of the American Physical Society, Volume 51, June 2018
David Garfinkle
DGRAV News: We hear that.... DGRAV Student Travel Grants Town Hall Meeting GRG Society Research Briefs: What's new in LIGO Conference Reports: Christodoulou Conference Obituaries:…