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What is Perturbation Theory in Quantum Mechanics about?

The document discusses perturbation theory, which is used to solve problems in quantum physics involving interactions or external fields. It presents the theory for both time-independent and time-dependent perturbations. For time-independent perturbations, it shows how the energy eigenvalues and eigenfunctions can be written as a power series involving the perturbation parameter. It also discusses degenerate cases. For time-dependent perturbations, it presents how the wavefunction can be written as a linear

Author

Yulli Selviani

Language

EN