Griffiths QM 7.4 | Perturbation Theory for Two-Level System
Автор: Vasu V
Загружено: 2025-01-21
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Griffiths Quantum Mechanics Problem 7.4 | Perturbation Theory for Two-Level System
In this video, we solve Problem 7.4 from Griffiths' Electrodynamics, which applies perturbation theory to the most general two-level quantum system.
We cover:
✔ The unperturbed Hamiltonian and its eigenvalues
✔ Adding a perturbation and finding exact energies
✔ Expanding to second order in λ and verifying results
✔ Convergence condition for the perturbation series
This problem is an excellent exercise in matrix mechanics, Hermitian operators, and perturbation theory concepts.
📚 Textbook Reference: Griffiths, Introduction to Quantum Mechanics (3rd Edition)
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