kayltosh2729

15.04.2020 • 

Engineering

Consider the following wave functions representing excited states of He: ψa = 1s(1)2s(2)α(1)α(2) ψb = [1s(1)2s(2) + 1s(2)2s(1)][α(1)β(2) − α(2)β(1)] ψc = [1s(1)2s(2) − 1s(2)2s(1)][α(1)β(2) − α(2)β(1)] ψd = [1s(1)2s(2) − 1s(2)2s(1)]α(1)α(2) (a) Determine which of the wave functions are eigenfunctions of the exchange operator, by acting the exchange operator. (b) Determine which are valid wave functions for excited state He, i.e., which have an eigenvalue of -1 and thus are antisymmetric with respect to exchange. (c) Which of the valid wavefunctions has/have the lowest energy

Ответ:

paige1616

11.05.2023

Engineering

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Engineering Design Loop: The steps of the design process include: identify the need, research the problem, develop possible solutions, select the most promising solution, construct a prototype, test and evaluate the prototype, communicate the design, and redesign

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