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.

3.4.2. Helper functions

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

3.4.3. Data types

Occupation(distribution[, energy_range, …])	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.