Feedback Control over Response in the Cavity Quantum Electromagnetic Sensor


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Authors

  • Sergey Borisenok Abdullah Gül University

Keywords:

Nitrogen-vacancy-cavity system, quantum electrodynamics, Tavis-Cummings model, weak microwabe drive, target attractor feedback

Abstract

Here we discuss as an important particular case the hybrid quantum electromagnetic sensor
represented by a nitrogen-vacancy (NV) ensemble of N >> 1 centers in the doped diamond coupled to a
high-quality factor dielectric resonator. The existing NV ensemble-based devices exhibit sensitivities that
are several orders of magnitude away from theoretical limits. On the one hand, improvements in spin
dephasing time, readout accuracy, and properties of the base diamond material can significantly improve
the quality of operation of a quantum sensor. On the other hand, sensing optimization schemes also
significantly affect its performance. We focus on the application of feedback to control the response in the
cavity quantum electromagnetic sensor. We use the standard Tavis-Cummings model for the system and
then introduce control over the target attractor method. In this model they are considered to be noninteracting two-level systems with transition frequencies wj, distributed inhomogeneously due to
heterogeneous local magnetic and strain environments as well as hyperfine coupling with 14N nuclear
spins. We adopted an operator form of closed-loop algorithm to the semi-classical Tavis-Cummings
model in its ‘weak microwave drive’ limit. We used here target attractor Kolesnikov’s formulation of
feedback to track the sensor response r or, alternatively, the reflected signal to the input drive field. In
both cases, we achieve the tracking goal in the exponentially fast convergence.

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Author Biography

Sergey Borisenok, Abdullah Gül University

Department of Electrical and Electronics Engineering, Faculty of Engineering,  Kayseri, Türkiye

Feza Gürsey Center for Physics and Mathematics, Boğaziçi University, İstanbul, Türkiye

References

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S. Borisenok, “Control on the sensor coherence of transmon superconducting qubit via the gradient descent algorithm”, International Journal of Advanced Natural Sciences and Engineering Researches, vol. 7(11), pp. 278-282m Dec. 2023.

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Published

2024-06-27

How to Cite

Borisenok, S. (2024). Feedback Control over Response in the Cavity Quantum Electromagnetic Sensor. International Journal of Advanced Natural Sciences and Engineering Researches, 8(5), 153–157. Retrieved from https://as-proceeding.com/index.php/ijanser/article/view/1897

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