zero-point vibration; zero-point motion
Physics term for the residual vibrational motion of atoms at absolute zero, due to quantum uncertainty.
Even at absolute zero, atoms continue their zero-point vibration.
零点エネルギー is the energy associated with zero-point motion, while 零点振動 refers specifically to the vibrational motion itself.
Compound of 零点 (zero point) and 振動 (vibration), a direct translation of the English physics term 'zero-point vibration'.