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Quantum Readout Calibration Error Analysis Quantum Readout Measurement Hardware

A three-dimensional multimode lumped-element resonator for collective spin manipulation and dispersive readout

arXiv
Authors: Zhuo Chen, Wenhua Qin, Hanyu Ren, Ziyi Liu, Kae Nemoto, William John Munro, Yingqiu Mao, Johannes Majer

Year

2026

Paper ID

4046

Status

Preprint

Abstract Read

~2 min

Abstract Words

99

Citations

0

Abstract

We report a three-dimensional lumped-element multimode microwave resonator that enables homogeneous collective manipulation and dispersive readout of a macroscopic spin ensemble. By exploiting geometric symmetry, two antisymmetric modes with strongly suppressed cross-talk are engineered to spatially overlap and couple to the same ensemble at distinct frequencies. Using negatively charged nitrogen-vacancy centers in diamond at 28 mK, we observe collective strong coupling with a coupling strength of 5.0 MHz and demonstrate non-destructive dispersive readout via a detuned mode. The compact design, tunable coupling, and high field homogeneity make this resonator a versatile device for hybrid spin-photon systems and multimode solid-state quantum technologies.

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  • We report a three-dimensional lumped-element multimode microwave resonator that enables homogeneous collective manipulation and dispersive readout of a macroscopic spin ensemble.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2601.05476 [2] arXiv https://arxiv.org/abs/2601.05476 [3] Publisher https://arxiv.org/abs/2601.05476

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