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Griffiths QM Problem 7.5, Part 1 Perturbation in an Infinite Square Well due to a Delta Potential
Автор: Vasu V
Загружено: 2023-10-07
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This section demonstrates the impact of introducing a localized perturbation 𝐻′=𝛼𝛿(𝑥−𝑎/2) within an infinite potential well. The unperturbed energy levels 𝐸𝑛0 are altered by the delta potential, leading to a second-order correction expressed as 𝐸𝑛(2)=−2𝑚(𝛼/𝜋ℏ𝑛)^2. The schematic illustrates how symmetric wavefunctions interact with the delta perturbation at the midpoint, influencing only specific eigenstates based on their symmetry.
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