Wolfram|Alpha has quantum mechanics calculators. Solve problems related to the semi‐empirical mass formula; the Bose–Einstein condensation temperature for non‐interacting bosons; the Bose–Einstein distribution for non‐interacting bosons; Bragg's law; de Broglie relations; relativistic de Broglie relations; the Fermi–Dirac distribution for non‐interacting fermions; Fermi energy for non‐interacting fermions; the photoelectric effect; photon energy, momentum or wavelength; the Shannon‐Hartley theorem; energy‐time uncertainty relation; the Heisenberg uncertainty principle; and the Planck radiation formula.
