Skip to main content Module tunneling Copy item path Source RectangularBarrier Rectangular potential barrier. TunnelingRenderer Render tunneling: barrier as wall glyphs, wave packet as brightness. TunnelingResult Result of a tunneling simulation. TunnelingSimulation Tunneling simulation using the Schrodinger solver. alpha_decay_lifetime Gamow model for alpha decay lifetime.
Uses WKB approximation for Coulomb barrier tunneling. double_barrier Resonant tunneling through a double barrier. Returns transmission vs energy. transmission_coefficient Analytical transmission coefficient for a rectangular barrier.
T = 1 / (1 + V0^2 sinh^2(kappaa) / (4 E (V0 - E))) for E < V0
T = 1 / (1 + V0^2 sin^2(k a) / (4 E (E - V0))) for E > V0 wkb_approximation WKB approximation for tunneling through an arbitrary potential.
T ~ exp(-2/hbar * integral sqrt(2m(V(x)-E)) dx) from x1 to x2.