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The effect of a single non-selective radiofrequency pulse on the creation of multiple quantum coherences and on coherence transfer

โœ Scribed by M. Ravikumar


Publisher
Elsevier Science
Year
1988
Tongue
English
Weight
176 KB
Volume
144
Category
Article
ISSN
0009-2614

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โœฆ Synopsis


The creation of multiple-quantum coherences is not forbidden in experiments that employ a single non-selective radiofrequency pulse of arbitrary flip angle. In addition, such a pulse does not forbid coherence transfer between any two coherences. The role of population distribution in creating multiple-quantum coherences for equilibrium is discussed.


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Excitation of multiple quantum coherence
โœ P. Kumar ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 154 KB

Multiple quantum coherences are created by a single nonselective pulse from the equilibrium density matrix when the high-field approximation breaks down. In this situation the equilibrium density matrix also contains bilinear spin operators. In the case of a two spin system having scalar as well as