Measuring spin-noise correlation function via time reversal
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866914983091109888 |
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| author | Dubinin, M. V. Fomin, A. A. Kozlov, G. G. Petrov, M. Yu. Zapasskii, V. S. |
| author_facet | Dubinin, M. V. Fomin, A. A. Kozlov, G. G. Petrov, M. Yu. Zapasskii, V. S. |
| contents | We propose a simple method of measuring the autocorrelation function of a spin noise based on multiplication and averaging two digitized signal traces, with one of them being a time-reversed copy of the other. This procedure allows one to obtain, with lower computational expenses, all the information usually derived in the Fourier transform spin-noise spectroscopy, retaining all the merits of the latter. We successfully applied this method to the measurements of spin noise in cesium vapors by using a digital oscilloscope in the capacity of the analog-to-digital converter. Specific opportunities of this experimental approach as applied to a more general problem of studying the nature of light-intensity noise are discussed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_16413 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Measuring spin-noise correlation function via time reversal Dubinin, M. V. Fomin, A. A. Kozlov, G. G. Petrov, M. Yu. Zapasskii, V. S. Quantum Physics Data Analysis, Statistics and Probability Optics We propose a simple method of measuring the autocorrelation function of a spin noise based on multiplication and averaging two digitized signal traces, with one of them being a time-reversed copy of the other. This procedure allows one to obtain, with lower computational expenses, all the information usually derived in the Fourier transform spin-noise spectroscopy, retaining all the merits of the latter. We successfully applied this method to the measurements of spin noise in cesium vapors by using a digital oscilloscope in the capacity of the analog-to-digital converter. Specific opportunities of this experimental approach as applied to a more general problem of studying the nature of light-intensity noise are discussed. |
| title | Measuring spin-noise correlation function via time reversal |
| topic | Quantum Physics Data Analysis, Statistics and Probability Optics |
| url | https://arxiv.org/abs/2410.16413 |