Papers › PoMiN: A Post-Minkowskian N-Body Solver
PoMiN: A Post-Minkowskian N-Body Solver
Justin Feng, Mark Baumann, Bryton Hall, Joel Doss, Lucas Spencer, Richard Matzner
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In this paper, we introduce PoMiN, a lightweight N-body code based on the post-Minkowskian N-body Hamiltonian of Ledvinka et. al., which includes general relativistic effects up to first order in Newton's constant G, and all orders in the speed of light c. PoMiN is written in C and uses a fourth-order Runge-Kutta integration scheme. PoMiN has also been written to handle an arbitrary number of particles (both massive and massless), with a computational complexity that scales as O(N²). We describe the methods we used to simplify and organize the Hamiltonian, and the tests we performed (convergence, conservation, and analytical comparison tests) to validate the code.
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