Optical amplification and mass sensing in a spin qubit-nanomechanical resonator hybrid system.

Yiling Peng, Linwen Long, Jianbo Li, Hongmei Gong, Si Xiao, Yuxiang Peng

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Article in iScience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

Yiling PengCollege of Electronic Information and Physics, Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China.

Linwen LongCollege of Electronic Information and Physics, Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China.

Jianbo LiCollege of Electronic Information and Physics, Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China.

Hongmei GongSchool of Optical and Electronic Information, Jiangsu/Suzhou Key Laboratory of Biophotonics, International Joint Metacenter for Advanced Photonics and Electronics, Suzhou City University, Suzhou 215104, China.

Si XiaoSchool of Physics, Hunan Key Laboratory of Super microstructure and Ultrafast Process, Central South University, Changsha 410083, China.

Yuxiang PengCollege of Electronic Information and Physics, Hunan Province Key Laboratory of Materials Surface & Interface Science and Technology, Central South University of Forestry and Technology, Changsha 410004, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Highly sensitive mass sensors are pivotal for precision measurements but face critical challenges, necessitating innovative designs and approaches. In this study, we propose a tunable optical mass sensor based on a hybrid system consisting of a spin qubit and a nanomechanical resonator (NR). The results show that pump field frequency adjustment switches the four-wave mixing (FWM) spectrum between four/five-peaked structures, with two sharp sidebands aligned to the NR's resonance frequency. Near the bistable threshold, pump intensity tuning amplifies the FWM signal by up to 7.53 × 10

Indexed as

applied sciencesengineeringsensor system

Identifiers

PMID41727184

DOI10.1016/j.isci.2026.114732

PMCPMC12919279

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