zero-point energy noun2 •The lowest possible energy of a given quantum mechanical system.The existence of a zero-point energy (i.e., the existence of a non-zero lower limit to the energy of a quantum-mechanical system) is a consequence of Heisenberg's uncertainty principle. •The kinetic energy possessed by (the particle constituents of) a substance at absolute zero temperature.The calculated zero-point energies of hydrogen at inner bulk, GB, and FS are within 0.12-0.16eV/H. — 2004 formszero-point energies
