A top-down 2D view of the same Froehlich-model polaron physics as the 3D version: a charge carrier drags a cloud of lattice polarization behind it, growing deeper and tighter as coupling strength increases, until the electron self-traps.
Effective mass follows m*/m0 = 1 / (1 − α/6 − α²/240); polaron radius shrinks as r0 / (1 + α/3). Pick a material preset or drag the coupling slider to rescale α and watch both update live.
Material dropdown, coupling slider, simulation speed, orbit radius, play/pause and rebuild.