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What is Understanding Perturbation Theory in QM about?
The document discusses perturbation theory in quantum mechanics. Perturbation theory is used to approximate the energy levels and eigenstates of a quantum system when its Hamiltonian is slightly perturbed. For a system with discrete, non-degenerate energy levels, perturbation theory provides equations to calculate successive orders of correction to the energy levels and eigenstates of the original, unperturbed system. The first order correction uses first order perturbation theory, while higher orders of co
- Author
- vinayak e nair
- Language
- EN