Double-quantum nutations in a two-level spin system |
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| Authors: | R Boscaino FM Gelardi G Messina |
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| Institution: | Istituto di Fisica dell''Università and Unità di Palermo del Gruppo Nazionale Struttura della Materia, Via Archirafi 36, I-90123 Palermo, Italy |
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| Abstract: | We report experimental results of the oscillatory response of a two-level spin system (E'1 centres in glassy silica) excited by a step-modulated radiation tuned to the double-quantum (DQ) resonance. On the basis of a semiclassical calculation of the transient regime, the observed oscillations are ascribed to the nutations of the DQ transitions. |
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