Background cancellation for frequency-selective quantum sensing
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866912824855363584 |
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| author | Puig, Ricard Constantinides, Nathan Madhusudhana, Bharath Hebbe Bowring, Daniel Alderete, C. Huerta Sornborger, Andrew T. |
| author_facet | Puig, Ricard Constantinides, Nathan Madhusudhana, Bharath Hebbe Bowring, Daniel Alderete, C. Huerta Sornborger, Andrew T. |
| contents | A key challenge in quantum sensing is the detection of weak time dependent signals, particularly those that arise as specific frequency perturbations over a background field. Conventional methods usually demand complex dynamical control of the quantum sensor and heavy classical post-processing. We propose a quantum sensor that leverages time independent interactions and entanglement to function as a passive, tunable, thresholded frequency filter. By encoding the frequency selectivity and thresholding behavior directly into the dynamics, the sensor is responsive only to a target frequency of choice whose amplitude is above a threshold. This approach circumvents the need for complex control schemes and reduces the post-processing overhead. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_09792 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Background cancellation for frequency-selective quantum sensing Puig, Ricard Constantinides, Nathan Madhusudhana, Bharath Hebbe Bowring, Daniel Alderete, C. Huerta Sornborger, Andrew T. Quantum Physics High Energy Physics - Theory A key challenge in quantum sensing is the detection of weak time dependent signals, particularly those that arise as specific frequency perturbations over a background field. Conventional methods usually demand complex dynamical control of the quantum sensor and heavy classical post-processing. We propose a quantum sensor that leverages time independent interactions and entanglement to function as a passive, tunable, thresholded frequency filter. By encoding the frequency selectivity and thresholding behavior directly into the dynamics, the sensor is responsive only to a target frequency of choice whose amplitude is above a threshold. This approach circumvents the need for complex control schemes and reduces the post-processing overhead. |
| title | Background cancellation for frequency-selective quantum sensing |
| topic | Quantum Physics High Energy Physics - Theory |
| url | https://arxiv.org/abs/2601.09792 |