Abstract
In this chapter, I discuss some general techniques that can be used to obtain approximate solutions to time-dependent problems in quantum mechanics.
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In this example, condition (23.5) is necessary but not sufficient for perturbation theory to be valid. It turns out that a necessary and sufficient condition is that the pulse area be much less than unity.
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Berman, P.R. (2018). Approximation Techniques in Time-Dependent Problems. In: Introductory Quantum Mechanics. UNITEXT for Physics. Springer, Cham. https://doi.org/10.1007/978-3-319-68598-4_23
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DOI: https://doi.org/10.1007/978-3-319-68598-4_23
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