Dirac Dispersion Lab

Probe E(p) on particle/antiparticle branches: group & phase velocity, light cone, optional wave-packet animation.

About this tool

Dirac Dispersion Lab — relativistic E=±√(p²c²+m²c⁴). Drag the p-probe (or click the plot) to read E, v_g=dE/dp, v_p=E/p, and the 2mc² pair gap. Optional wave-packet inset moves at the group velocity. Educational; c=1 units.