Are there available, commercial or free, numerical packages for simulating quantum dynamics that have built-in tools especially for quantum mechanics?
For the purpose of this question, I want to simulate two charged particles with a 1/r potential. I want to see how entanglement of the two charges affects each other's motion. It's such a simple problem that I'd think there would be packages for simulating such behaviour. I don't want to have to re-implement some PDE solver that already exists.