Dynamical Manipulation for spin-1/2 Systems
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By means of the inverse techniques we analyse the evolution of purely spin-1/2 systems in homogeneous magnetic fields as well as the generation of exact solutions. Some ``evolution loops'', dynamical processes for which any state evolves cyclically, are presented, and their corresponding geometric phases are evaluated
6 pages, LaTeX, Proceedings' macros included in source-file, 1 PostScript figure
6 pages, LaTeX, Proceedings' macros included in source-file, 1 PostScript figure