Review Article
The Heteronuclear Multiple-Quantum Correlation Experiment: Perspective from Classical Vectors, Nonclassical Vectors, and Product Operators
Table 1
Representation and significance of one-spin and two-spin operators [
28,
37].
| | Product Operator | Coherence name |
| | , | Longitudinal -spin (-spin) magnetization | | , , , | Transverse -spin (-spin) magnetization | | Nonequilibrium longitudinal two-spin magnetization | | , | Transverse -spin magnetization antiphase with respect to the coupling to -spin | | , | Transverse -spin magnetization antiphase with respect to the coupling to -spin | | , , , | Multiple-Quantum Coherence |
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