Effective Hamiltonians are often used in quantum physics, both in time-dependent and time-independent contexts. Analogies are drawn between the two usages, the discussion framed particularly for the geometric phase of a time-dependent Hamiltonian and for resonances as stationary states of a time-independent Hamiltonian. © 2006 The Royal Swedish Academy of Sciences.
Publication Source (Journal or Book title)
Rau, A., & Uskov, D. (2006). Effective Hamiltonians in quantum physics: Resonances and geometric phase. Physica Scripta, 74 (2) https://doi.org/10.1088/0031-8949/74/2/N03