# 3.3. tkwant.onebody – Solving the one-body time-dependent Schrödinger equation¶

## 3.3.1. States¶

Solving the one-body time-dependent Schrödinger equation.

 ScatteringStates(syst, energy, lead[, tmax, …]) Calculate time-dependent wavefunctions starting in an equilibrium scattering state WaveFunction(H0, W, psi_init[, energy, …]) A class to solve the time-dependent single-particle wavefunction.

## 3.3.2. Data types¶

 Task(lead, mode, energy, weight[, …]) Data format to store the set of quantum numbers that uniquely indentifies a onebody state and the weight of that state in the manybody sum.