| 单词 | zero-point energy |
| 释义 | > as lemmaszero-point energy zero-point energy n. Physics (in quantum mechanics) the minimum energy possessed by a physical system at a temperature of absolute zero. ΚΠ 1913 Proc. 3rd Internat. Congr. Refrigeration 2 126 (note) Planek's [sic] theory of radiation.., in which the vibrators have a zero-point energy, received firm support from an unexpected source. 1935 J. Dougall tr. M. Born Atomic Physics 339 According to the classical theory, the state of least energy of an oscillator is that of zero energy. According to wave mechanics, however, the ground state has a finite energy E = ½hv0... This zero-point energy can be explained by Heisenberg's uncertainty principle. 1952 C. A. Coulson Valence i. 11 Even in the lowest allowed vibrational state there still remains the zero-point energy of vibration. 2007 F. Close Nothing: Very Short Introd. (2009) vii. 100 Quantum mechanics implies that there is a minimum sum of kinetic and potential energies that can be achieved: both cannot simultaneously be zero. This minimum amount is the zero point energy of the atomic assembly. < as lemmas |
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