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Quantum Sensing Metrology

Background cancellation for frequency-selective quantum sensing

arXiv
Authors: Ricard Puig, Nathan Constantinides, Bharath Hebbe Madhusudhana, Daniel Bowring, C. Huerta Alderete, Andrew T. Sornborger

Year

2026

Paper ID

3818

Status

Preprint

Abstract Read

~2 min

Abstract Words

105

Citations

N/A

Abstract

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.

Why This Paper Matters

  • This paper contributes to the Quantum Sensing & Metrology research area in the Quantum Articles archive.
  • It adds a 2026 reference point for readers tracking recent quantum research.
  • 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.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2601.09792 [2] arXiv https://arxiv.org/abs/2601.09792 [3] Publisher https://arxiv.org/abs/2601.09792

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