Time-Dependent Perturbation Theory
Many Hamiltonians which describe real systems have a time-dependent part. In this case, we need to extend the techniques of perturbation theory.
In this chapter you will
• Learn how to handle a time-dependent hamiltonian
• Find the probability of a system changing state with a time-dependent hamiltonian
• Learn the different pictures in quantum theory
Now consider a Hamiltonian that can be written in terms of a time-independent part which we dub H0 and a time-dependent potential V:
If the time-dependent piece V is small compared to the time-independent piece H0, we can use perturbation ...