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Time-optimal coherence-order-selective transfer of in-phase coherence in heteronuclear IS spin systems |
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| Authors: | Reiss Timo O Khaneja Navin Glaser Steffen J |
| Institution: | 1. Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA;2. Department of Biophysics, University of Michigan, Ann Arbor, MI 48109, USA;1. Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan;2. National Institute for Materials Science, 3-13 Sakura, Tsukuba, Ibaraki 305-0003, Japan;1. Wuhan Center for Magnetic Resonance, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Science, Wuhan 430071, PR China;2. National High Magnetic Field Lab, Florida State University, Tallahassee, FL 32310, USA |
| Abstract: | Based on principles of geometric optimal control theory, coherence transfer building blocks can be derived which achieve optimal sensitivity. Here, experimental pulse sequences are presented that achieve the best possible coherence-order-selective in-phase transfer (S(-)-->I(-)) for a heteronuclear 2-spin system for any given mixing time in the absence of relaxation. For short mixing times, the optimal experiment improves the sensitivity of isotropic mixing by up to 12.5%. |
| Keywords: | Abbreviations: optimal control theoryAbbreviations: coherence transferAbbreviations: isotropic mixingAbbreviations: sensitivity enhancementAbbreviations: TOCSY |
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