| 单词 | variation principle |
| 释义 | > as lemmasvariation principle variation principle n. Physics the principle (employed in the variation method) that the energy corresponding to an arbitrary wave function cannot be less than the actual lowest energy of the system under consideration. ΘΚΠ the world > matter > physics > quantum theory > quantum mechanics > wave mechanics > [noun] > wave function > equation producing > method of finding solution to > principle employed in variation principle1923 1923 Physical Rev. 22 547 This variation principle includes formally in a single equation the results of classical dynamics and the Sommerfeld quantum conditions. 1975 H. F. Hameka Quantum Theory Chem. Bond i. 28 We shall discuss the two methods of approximation that are most widely used in quantum chemistry, namely the variation principle and perturbation theory. < as lemmas |
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