- #1
tendor
- 11
- 0
Hello,
lets say I have Hamiltonian aproximation [itex]H(\vec{x}_a,\vec{p}_a)[/itex] of gravitational interaction that can be used for n-body simulation of mass particles and photons. Spacetime curved by simulated particles would be asymptoticly flat. But I don't have a metric etc. All I have is evolution of particles based on coordinate time, so I have masses, momenta and coordinates of particles.
My problem is I can't find materials that would told me how to use test particles and photons in order to extract observables etc. from such simulation...
lets say I have Hamiltonian aproximation [itex]H(\vec{x}_a,\vec{p}_a)[/itex] of gravitational interaction that can be used for n-body simulation of mass particles and photons. Spacetime curved by simulated particles would be asymptoticly flat. But I don't have a metric etc. All I have is evolution of particles based on coordinate time, so I have masses, momenta and coordinates of particles.
My problem is I can't find materials that would told me how to use test particles and photons in order to extract observables etc. from such simulation...