The 2PM Hamiltonian for binary Kerr to quartic in spin
Wei‐Ming Chen, Ming-Zhi Chung, Yu-tin Huang, Jung-Wook Kim
Abstract
A bstract From the S-matrix of spinning particles, we extract the 2 PM conservative potential for binary spinning black holes up to quartic order in spin operators. An important ingredient is the exponentiated gravitational Compton amplitude in the classical spin-limit for all graviton helicity sectors. The validity of the resulting Hamiltonian is verified by matching to known lower spin order results, as well as direct computation of the 2PM impulse and spin kicks from the eikonal phase and that from the test black hole scattering based on Mathisson-Papapetrou-Dixon equations.
Topics & Concepts
PhysicsGravitonQuartic functionHamiltonian (control theory)Eikonal equationAnsatzHelicityQuantum mechanicsMathematical physicsGravitationMathematicsPure mathematicsMathematical optimizationPulsars and Gravitational Waves ResearchBlack Holes and Theoretical PhysicsAstrophysical Phenomena and Observations