A SYSTEMATIC STRATEGY FOR DESIGN OF OPTIMUM COHERENT EXPERIMENTS APPLIED TO EFFICIENT INTERCONVERSION OF DOUBLE-QUANTUM AND SINGLE-QUANTUM COHERENCES IN NUCLEAR-MAGNETIC-RESONANCE

A systematic strategy for design of optimum experiments in multidimens ional coherent spectroscopy is described and applied to nuclear magnet ic resonance (NMR). First an appropriate bound on the quantum dynamics is employed to determine a theoretical upper limit on coherence trans fer efficiency which translates into the sensitivity of the experiment . Next it is investigated whether the theoretical limit can be achieve d by a series of selective rotations. Then the final step serves to co nvert the selective rotations found into a nonselective pulse experime nt which has a more general applicability. The example chosen for illu stration is double- to single-quantum coherence transfer in INADEQUATE which is one of the most popular NMR experiments. Using the design st rategy presented we show how the sensitivity of INADEQUATE can be doub led. (C) 1996 American Institute of Physics.