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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2405.03896 |
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| _version_ | 1866908578441330688 |
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| author | Hegde, Swastik Durden, David J. Ajayakumar, Lakshmy Priya Sivakumar, Rishi Backlund, Mikael P. |
| author_facet | Hegde, Swastik Durden, David J. Ajayakumar, Lakshmy Priya Sivakumar, Rishi Backlund, Mikael P. |
| contents | Certain quantum sensing protocols rely on qubits that are initialized, coherently driven in the presence of a stimulus to be measured, then read out. Most widely employed pulse sequences used to drive sensing qubits act locally in either the time or frequency domain. We introduce a generalized set of sequences that effect a measurement in any fractional Fourier domain, i.e. along a linear trajectory of arbitrary angle through the time-frequency plane. Using an ensemble of nitrogen-vacancy centers we experimentally demonstrate advantages in sensing signals with time-varying spectra. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_03896 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Quantum sensing in the fractional Fourier domain Hegde, Swastik Durden, David J. Ajayakumar, Lakshmy Priya Sivakumar, Rishi Backlund, Mikael P. Quantum Physics Certain quantum sensing protocols rely on qubits that are initialized, coherently driven in the presence of a stimulus to be measured, then read out. Most widely employed pulse sequences used to drive sensing qubits act locally in either the time or frequency domain. We introduce a generalized set of sequences that effect a measurement in any fractional Fourier domain, i.e. along a linear trajectory of arbitrary angle through the time-frequency plane. Using an ensemble of nitrogen-vacancy centers we experimentally demonstrate advantages in sensing signals with time-varying spectra. |
| title | Quantum sensing in the fractional Fourier domain |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2405.03896 |