zitterbewegung


zitterbewegung

[¦tsid·ər·be′vā‚gu̇ŋ] (quantum mechanics) An oscillatory motion of an electron suggested in some interpretations of the Dirac electron theory, having a frequency greater than 4π mc 2/ h, where m is the electron's mass, c is the speed of light, and h is Planck's constant, or approximately 1.5 × 1021 hertz.