Posted on May 18, 2025 by Quiz of the Day #1. The perturbation term in the Hamiltonian is assumed to be: Small compared to the unperturbed Hamiltonian. Large compared to the unperturbed Hamiltonian. Time-dependent. Hermitian and equal to the unperturbed Hamiltonian. See this article for more details. Previous Check Answer Results Click the “Quiz” button for a new question