3.4. `tkwant.manybody` – Solving the many-body time-dependent Schrödinger equation¶

3.4.1. States¶

Solving the many-body time-dependent Schrödinger equation.

`State`(syst[, tmax, occupations, params, …])	Solve the time-dependent many-particle Schrödinger equation.
`WaveFunction`(psi_init, tasks[, comm])	Evolve a many-particle wavefunction in time.

`lead_occupation`([chemical_potential, …])	Set the occupation (\(T, \mu, f(E)\)) for one lead.
`calc_intervals`(spectra, occupations[, …])	Return a list of momentum intervals to perform the manybody integration.
`split_intervals`(intervals, number_subintervals)	Divide each interval in number_subintervals equidistant intervals.
`combine_intervals`(intervals[, atol, rtol])	Group leads for similar intervals together.
`calc_tasks`(intervals, spectra, occupations)	Return all tasks (set of quantum numbers that uniquely identify a onebody state) that will form the manybody state.
`calc_initial_state`(syst, tasks[, …])	Calculate the initial manybody scattering wave function using MPI.
`calc_energy_cutoffs`(occupations)	Extract upper and lower energy cutoffs from the lead occupations.
`make_boundstates_time_dependent`(…[, …])	Make boundstates time dependent, such that they can evolve in time.
`add_boundstates`(solver, boundstate_psi, …)	Add a sequence of boundstates to the manybody solver

`Occupation`(distribution[, energy_range, bands])	Data format for the lead occupation, see `tkwant.manybody.lead_occupation`.
`Interval`(lead, band, kmin, kmax[, order, …])	Data format for a quadrature interval, see `tkwant.manybody.calc_intervals`.