What is the key assumption in time-dependent perturbation theory?OPTIONS The perturbing Hamiltonian is large compared to the unperturbed Hamiltonian. The perturbing Hamiltonian is time-independent. The perturbing Hamiltonian is diagonal. The perturbing Hamiltonian is small compared to the unperturbed Hamiltonian.

In time-dependent perturbation theory, which of the following terms represents the interaction between the unperturbed Hamiltonian and the perturbing Hamiltonian?OPTIONS Zeroth-order term First-order term None of the above Second-order term

In time-dependent non-degenerate perturbation theory, the first-order correction to the energy of a quantum system due to a time-dependent perturbing Hamiltonian H′(t) is given by:OPTIONS ΔE1​=ℏ⟨Ψn​(0)∣H′(t)∣Ψn​(t)⟩​ ΔE1​=⟨Ψn​(0)∣H′(t)∣Ψn​(0)⟩ ΔE1​=ℏ⟨Ψn​(0)∣H′(t)​ ΔE1​=ℏ⟨Ψn​(0)∣H′(t)∣Ψn​(0)⟩​

Which term in the perturbation series represents the unperturbed solution to the system?OPTIONS ∣​Ψ(2)(t)⟩ ∣​Ψ(0)(t)⟩ ∣​Ψ(t)⟩ ∣​Ψ(1)(t)⟩

Which equation is used to calculate the probability amplitude at a specific time in time-dependent perturbation theory?OPTIONS Time-independent perturbation equation Schrödinger's equation Heisenberg's equation of motion Time-dependent perturbation equation

Write the Schrodinger equation for zero order approximation of perturbation theory.