Parameters
Starting position of electron wavepacket center
Position uncertainty (wider → narrower momentum uncertainty)
Electron kinetic energy E = ½mν² (k₀ = 2.0 nm⁻¹)
Potential energy barrier (tunneling occurs when E_k < V₀)
Width of barrier (wider → less tunneling)
Center position of the barrier
Showing probability density |ψ|²
About This Simulation
This simulation solves the time-dependent Schrödinger equation for an electron using the split-operator FFT method. Watch quantum tunneling and reflection as the wavepacket encounters a potential barrier. The electron can tunnel through even when E_k < V₀!
Physical Scale: Electron at nanometer scale (1 nm = 10⁻⁹ m). Energy in eV, typical of atomic/molecular physics.
Transmission & Reflection
Transmission: Probability of passing through barrier
Reflection: Probability of bouncing back
No simulation history yet
Launch a wavepacket to see results