Tri-axial time-dependent magnetic field calibrated in-situ by harmonic analysis of adiabatically evolving atomic spins
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866915370863951872 |
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| author | Bevilacqua, Giuseppe Biancalana, Valerio Dancheva, Yordanka Fregosi, Alessandro |
| author_facet | Bevilacqua, Giuseppe Biancalana, Valerio Dancheva, Yordanka Fregosi, Alessandro |
| contents | We introduce a methodology to calibrate in situ a set of coils generating bi- or tri-axial magnetic fields, at frequencies where a calibration performed under static conditions would be inaccurate. The methodology uses harmonic analysis of one component of the magnetization of an atomic sample whose spins adiabatically follow an ad hoc applied time-dependent field. The procedure enables the identification of phases and amplitudes of the coil currents required to produce a dynamic magnetic field with the assigned polarization. This determines coil constants that can be subsequently used to produce arbitrary three-dimensional time-dependent fields. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_14574 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Tri-axial time-dependent magnetic field calibrated in-situ by harmonic analysis of adiabatically evolving atomic spins Bevilacqua, Giuseppe Biancalana, Valerio Dancheva, Yordanka Fregosi, Alessandro Instrumentation and Detectors Applied Physics Atomic Physics We introduce a methodology to calibrate in situ a set of coils generating bi- or tri-axial magnetic fields, at frequencies where a calibration performed under static conditions would be inaccurate. The methodology uses harmonic analysis of one component of the magnetization of an atomic sample whose spins adiabatically follow an ad hoc applied time-dependent field. The procedure enables the identification of phases and amplitudes of the coil currents required to produce a dynamic magnetic field with the assigned polarization. This determines coil constants that can be subsequently used to produce arbitrary three-dimensional time-dependent fields. |
| title | Tri-axial time-dependent magnetic field calibrated in-situ by harmonic analysis of adiabatically evolving atomic spins |
| topic | Instrumentation and Detectors Applied Physics Atomic Physics |
| url | https://arxiv.org/abs/2404.14574 |