期刊
JOURNAL OF CHEMICAL PHYSICS
卷 134, 期 5, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3543796
关键词
-
资金
- DFG [GI 203/6-1, SFB 631]
- EU
- Fonds der Chemischen Industrie
We consider the time-optimal control of an ensemble of uncoupled spin 1/2 particles in the presence of relaxation and radiation damping effects, whose dynamics is governed by nonlinear equations generalizing the standard linear Bloch equations. For a single spin, the optimal control strategy can be fully characterized analytically. However, in order to take into account the inhomogeneity of the static magnetic field, an ensemble of isochromats at different frequencies must be considered. For this case, numerically optimized pulse sequences are computed and the dynamics under the corresponding optimal field is experimentally demonstrated using nuclear magnetic resonance techniques. (C) 2011 American Institute of Physics. [doi:10.1063/1.3543796]
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