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arXiv · 2104.00499

Spin dynamic response to a time dependent field

Giuseppe Bevilacqua·Valerio Biancalana·Yordanka Dancheva·Alessandro Fregosi·Antonio Vigilante
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Abstract

The dynamic response of a parametric system constituted by a spin precessing in a time dependent magnetic field is studied by means of a perturbative approach that unveils unexpected features, and is then experimentally validated. The first-order analysis puts in evidence different regimes: beside a tailorable low-pass-filter behaviour, a band-pass response with interesting potential applications emerges. Extending the analysis to the second perturbation order permits to study the response to generically oriented fields and to characterize several non-linear features in the behaviour of such kind of systems.

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Giuseppe Bevilacqua, Valerio Biancalana, Yordanka Dancheva, Alessandro Fregosi, Antonio Vigilante. 2021-04-01. Spin dynamic response to a time dependent field. https://doi.org/10.1007/s00340-021-07673-y

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