The Superconducting Quasiparticle-Amplifying Transmon: A Qubit-Based Sensor for meV Scale Phonons and Single THz Photons
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866913578117758976 |
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| author | Fink, Caleb W. Salemi, Chiara P. Young, Betty A. Schuster, David I. Kurinsky, Noah A. |
| author_facet | Fink, Caleb W. Salemi, Chiara P. Young, Betty A. Schuster, David I. Kurinsky, Noah A. |
| contents | With great interest from the quantum computing community, an immense amount of R&D effort has been invested into improving superconducting qubits. The technologies developed for the design and fabrication of these qubits can be directly applied to applications for ultra-low threshold particle detectors, e.g. low-mass dark matter and far-IR photon sensing. We propose a novel sensor based on the transmon qubit architecture combined with a signal-enhancing superconducting quasiparticle amplification stage. We refer to these sensors as SQUATs: Superconducting Quasiparticle-Amplifying Transmons. We detail the operating principle and design of this new sensor and predict that with minimal R&D effort, solid-state based detectors patterned with these sensors can achieve sensitivity to single THz photons, and sensitivity to $1\,\mathrm{meV}$ phonons in the detector absorber substrate on the $μ\mathrm{s}$ timescale. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_01345 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | The Superconducting Quasiparticle-Amplifying Transmon: A Qubit-Based Sensor for meV Scale Phonons and Single THz Photons Fink, Caleb W. Salemi, Chiara P. Young, Betty A. Schuster, David I. Kurinsky, Noah A. Instrumentation and Detectors High Energy Physics - Experiment Quantum Physics With great interest from the quantum computing community, an immense amount of R&D effort has been invested into improving superconducting qubits. The technologies developed for the design and fabrication of these qubits can be directly applied to applications for ultra-low threshold particle detectors, e.g. low-mass dark matter and far-IR photon sensing. We propose a novel sensor based on the transmon qubit architecture combined with a signal-enhancing superconducting quasiparticle amplification stage. We refer to these sensors as SQUATs: Superconducting Quasiparticle-Amplifying Transmons. We detail the operating principle and design of this new sensor and predict that with minimal R&D effort, solid-state based detectors patterned with these sensors can achieve sensitivity to single THz photons, and sensitivity to $1\,\mathrm{meV}$ phonons in the detector absorber substrate on the $μ\mathrm{s}$ timescale. |
| title | The Superconducting Quasiparticle-Amplifying Transmon: A Qubit-Based Sensor for meV Scale Phonons and Single THz Photons |
| topic | Instrumentation and Detectors High Energy Physics - Experiment Quantum Physics |
| url | https://arxiv.org/abs/2310.01345 |