Time-dependent perturbation of a two-state quantum system by a sinusoidal fieldDifferent methods for solving the 'two-level problem' are discussed, namely, the problem of what happens to a material system having only two nondegenerate energy levels when it is perturbed by an electromagnetic field that varies with time in a monochromatic sinusoidal fashion. The various methods discussed include: (1) the Sen Gupta technique using nondegenerate Rayleigh-Schroedinger perturbation theory, (2) the Salwen-Winter-Shirley partitioning perturbation technique, (3) the Shirley and series degenerate Rayleigh-Schroedinger expansion, (4) the degenerate Rayleigh-Schroedinger technique for considering high frequency fields, and (5) the singular perturbation expansion technique.
Document ID
19770033804
Acquisition Source
Legacy CDMS
Document Type
Other - Collected Works
Authors
Dion, D. R. (Wisconsin Univ. Madison, WI, United States)
Hirschfelder, J. O. (Wisconsin, University Madison, Wis., United States)