zero-point energy

短语

[化] 零点能

词形变化

zero-point energies 复数 zero-point energies

释义与例句

n.
  1. 1.

    The lowest possible energy of a given quantum mechanical system.

    物理

    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.

    2000, Stephen T. Thornton, Andrew F. Rex, Modern Physics for Scientists and Engineers, Saunders College Publishing, page 205, Our estimate for the zero-point energy of the harmonic oscillator is hbar ω/2.

  2. 2.

    The kinetic energy possessed by (the particle constituents of) a substance at absolute zero temperature.

    化学 物理

词源

Calque of German Nullpunktenergie.

来源：wiktionary