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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2505.24564 |
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| _version_ | 1866918049582415872 |
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| author | Chang, Yu-Cheng Chianese, Federico Shetty, Naveen Huhtasaari, Johanna Jayaraman, Aditya Peltonen, Joonas T. Lara-Avila, Samuel Karimi, Bayan Danilov, Andrey Pekola, Jukka P. Kubatkin, Sergey |
| author_facet | Chang, Yu-Cheng Chianese, Federico Shetty, Naveen Huhtasaari, Johanna Jayaraman, Aditya Peltonen, Joonas T. Lara-Avila, Samuel Karimi, Bayan Danilov, Andrey Pekola, Jukka P. Kubatkin, Sergey |
| contents | Exploiting quantum interference of charge carriers, epitaxial graphene grown on silicon carbide emerges as a game-changing platform for ultra-sensitive bolometric sensing, featuring an intrinsic resistive thermometer response unmatched by any other graphene variant. By achieving low and uniform carrier densities, we have accessed a new regime of strong charge localization that dramatically reduces thermal conductance, significantly enhancing bolometer performance. Here we present scalable graphene-based bolometers engineered for detecting GHz-range photons, a frequency domain essential for superconducting quantum processors. Our devices deliver a state-of-the-art noise equivalent power of 40 zW$/\sqrt{\rm Hz}$ at $T=40~$mK, enabled by the steep temperature dependence of thermal conductance, $G_{\rm th}\sim T^4$ for $T<100~$mK. These results establish epitaxial graphene bolometers as versatile and low-back-action detectors, unlocking new possibilities for next-generation quantum processors and pioneering investigations into the thermodynamics and thermalization pathways of strongly entangled quantum systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_24564 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quantum-Ready Microwave Detection with Scalable Graphene Bolometers in the Strong Localization Regime Chang, Yu-Cheng Chianese, Federico Shetty, Naveen Huhtasaari, Johanna Jayaraman, Aditya Peltonen, Joonas T. Lara-Avila, Samuel Karimi, Bayan Danilov, Andrey Pekola, Jukka P. Kubatkin, Sergey Mesoscale and Nanoscale Physics Strongly Correlated Electrons Instrumentation and Detectors Exploiting quantum interference of charge carriers, epitaxial graphene grown on silicon carbide emerges as a game-changing platform for ultra-sensitive bolometric sensing, featuring an intrinsic resistive thermometer response unmatched by any other graphene variant. By achieving low and uniform carrier densities, we have accessed a new regime of strong charge localization that dramatically reduces thermal conductance, significantly enhancing bolometer performance. Here we present scalable graphene-based bolometers engineered for detecting GHz-range photons, a frequency domain essential for superconducting quantum processors. Our devices deliver a state-of-the-art noise equivalent power of 40 zW$/\sqrt{\rm Hz}$ at $T=40~$mK, enabled by the steep temperature dependence of thermal conductance, $G_{\rm th}\sim T^4$ for $T<100~$mK. These results establish epitaxial graphene bolometers as versatile and low-back-action detectors, unlocking new possibilities for next-generation quantum processors and pioneering investigations into the thermodynamics and thermalization pathways of strongly entangled quantum systems. |
| title | Quantum-Ready Microwave Detection with Scalable Graphene Bolometers in the Strong Localization Regime |
| topic | Mesoscale and Nanoscale Physics Strongly Correlated Electrons Instrumentation and Detectors |
| url | https://arxiv.org/abs/2505.24564 |