“variational method”的概念、定义、翻译、参考文献-科学参考

单词	variational method
释义	variational method [´ver·ē`ā·shǝn·ǝl ´meth·ǝd] ^{QUANTUM MECHANICS} A method of calculating an upper bound on the lowest energy level of a quantum-mechanical system and an approximation for the corresponding wave function; in the integral representing the expectation value of the Hamiltonian operator, one substitutes a trial function for the true wave function, and varies parameters in the trial function to minimize the integral.
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