Bonn 2010 – wissenschaftliches Programm

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GR: Fachverband Gravitation und Relativitätstheorie

GR 18: Grundlegende Probleme

GR 18.1: Vortrag

Freitag, 19. März 2010, 14:00–14:20, JUR K

On the reduced Next-to-Leading Order Spin-Squared Hamiltonian for Binary Systems — •Steven Hergt — Theoretisch-Physikalisches Institut, Friedrich-Schiller-Universität, Max-Wien-Platz 1, 07743 Jena, Germany, EU

It is presented the fully reduced (to the physical degrees of freedom) next-to-leading-order Spin-Squared Hamiltonian for arbitrary binaries like black holes or neutron stars modeled by a quadrupole constant, which takes into account self-spin interaction or spin deformation effects at 2nd post-Newtonian order in perturbation theory of Einstein's field equations. The Hamiltonian is calculated in standard canonical variables. Equivalence of different approaches attaining this Hamiltonian (with different spin supplementary condition or coordinates) is also shown.