Unitary control in quantum ensembles: Maximizing signal intensity in coherent spectroscopy
1998 | journal article; research paper. A publication with affiliation to the University of Göttingen.
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Unitary control in quantum ensembles: Maximizing signal intensity in coherent spectroscopy
Glaser, S. J.; Schulte-Herbruggen, T .; Sieveking, M.; Schedletzky, O.; Nielsen, N. C.; Sørensen, O. W. & Griesinger, C. (1998)
Science, 280(5362) pp. 421-424. DOI: https://doi.org/10.1126/science.280.5362.421
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Details
- Authors
- Glaser, S. J.; Schulte-Herbruggen, T .; Sieveking, M; Schedletzky, O.; Nielsen, N. C.; Sørensen, O. W.; Griesinger, Christian
- Abstract
- Experiments in coherent magnetic resonance, microwave, and optical spectroscopy control quantum-mechanical ensembles by guiding them from initial states toward target states by unitary transformation. Often, the coherences detected as signals are represented by a non-Hermitian operator. Hence, spectroscopic experiments, such as those used in nuclear magnetic resonance, correspond to unitary transformations between operators that in general are not Hermitian, A gradient-based systematic procedure for optimizing these transformations is described that finds the largest projection of a transformed initial operator onto the target operator and, thus, the maximum spectroscopic signal. This method can also be used in applied mathematics and control theory.
- Issue Date
- 1998
- Journal
- Science
- ISSN
- 0036-8075