227 citations · 1.5k across the 17 of their papers we have counts for
18 papers
The N-Body 2PN Hamiltonian and Numerical Integration of the Equations of Motion
Felix M. Heinze, Gerhard Schäfer, Bernd Brügmann
To date, the second-order post-Newtonian (2PN) Hamiltonian has been known in closed analytic form only for systems of up to three point masses. In this paper, we present an analyti…
From Momentum Expansions to Post-Minkowskian Hamiltonians by Computer Algebra Algorithms
J. Blümlein, A. Maier, P. Marquard +2
The post-Newtonian and post-Minkowskian solutions for the motion of binary mass systems in gravity can be derived in terms of momentum expansions within effective field theory appr…
Fourth post-Newtonian effective one-body dynamics
Thibault Damour, Piotr Jaranowski, Gerhard Schäfer
The conservative dynamics of gravitationally interacting two-point-mass systems has been recently determined at the fourth post-Newtonian (4PN) approximation [T.Damour, P.Jaranowsk…
Recent progress in spin calculations in the post-Newtonian framework and applications
Johannes Hartung, Jan Steinhoff, Gerhard Schäfer
Recently we derived the next-to-next-to-leading order post-Newtonian Hamiltonians at spin-orbit and spin(1)-spin(2) level for a binary system of compact objects. In this talk the d…
Biphasic flow: structure and upscaling, consequences on macroscopic transport properties
Renaud Toussaint, Knut Jørgen Måløy, Yves Méheust +4
In disordered porous media, two-phase flow of immiscible fluids (biphasic flow) is organized in patterns that sometimes exhibit fractal geometries over a range of length scales, de…
Comment on recent papers regarding next-to-leading order spin-spin effects in gravitational interaction
Jan Steinhoff, Gerhard Schäfer
It is argued that the tetrad in a recent paper by Porto and Rothstein on gravitational spin-spin coupling should not have the given form. The fixation of that tetrad was suggested…