Reduced Hamiltonian for next-to-leading order Spin-Squared Dynamics of General Compact Binaries

Details Reduced Hamiltonian for next-to-leading order Spin-Squared Dynamics of General Compact Binaries Reduced Hamiltonian for next-to-leading order Spin-Squared Dynamics of General Compact Binaries

2010-02-10

arxiv.org/abs/1002.2093v2

Steven Hergt et al 2010 Class. Quantum Grav. 27 135007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 pages, minor changes to match published version at CQG

Scientific paper

10.1088/0264-9381/27/13/135007

Within the post Newtonian framework the fully reduced Hamiltonian (i.e., with eliminated spin supplementary condition) for the next-to-leading order spin-squared dynamics of general compact binaries is presented. The Hamiltonian is applicable to the spin dynamics of all kinds of binaries with self-gravitating components like black holes and/or neutron stars taking into account spin-induced quadrupolar deformation effects in second post-Newtonian order perturbation theory of Einstein's field equations. The corresponding equations of motion for spin, position and momentum variables are given in terms of canonical Poisson brackets. Comparison with a nonreduced potential calculated within the Effective Field Theory approach is made.

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