Cosmic muon flux attenuation methods for superconducting qubit experiments
We propose and demonstrate two practical mitigation methods to attenuate the cosmic muon flux, compatible with experiments involving superconducting qubits: shallow underground sites and device orientation. Using a specifically-built cosmic muon detector, we identify underground sites, widely presen...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | New Journal of Physics |
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| Online Access: | https://doi.org/10.1088/1367-2630/adaedc |
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| _version_ | 1823858309946408960 |
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| author | Elia Bertoldo Victor Pérez Sánchez Maria Martínez Manel Martínez Hawraa Khalife Pol Forn-Díaz |
| author_facet | Elia Bertoldo Victor Pérez Sánchez Maria Martínez Manel Martínez Hawraa Khalife Pol Forn-Díaz |
| author_sort | Elia Bertoldo |
| collection | DOAJ |
| description | We propose and demonstrate two practical mitigation methods to attenuate the cosmic muon flux, compatible with experiments involving superconducting qubits: shallow underground sites and device orientation. Using a specifically-built cosmic muon detector, we identify underground sites, widely present in urban environments, where significant attenuation of cosmic muon flux, up to a factor 35 for 100 m depths, can be attained. Furthermore, we employ two germanium wafers in an above-ground laboratory, each equipped with a particle sensor, to show how the orientation of a chip with respect to the sky affects the amount and type of energy deposited on the substrate by ionizing radiation. We observe that the horizontal detector sees more counts at lower energy, while the vertical one is impacted by more particles at higher energy. The methods here described proposed ways to directly understand and reduce the effects of cosmic rays on qubits by attenuating the source of this type of decoherence, complementing existing on-chip mitigation strategies. We expect that both on-chip and off-chip methods combined will become ubiquitous in quantum technologies based on superconducting qubit circuits. |
| format | Article |
| id | doaj-art-015a6ed5cc1f48508e4b92cbafca4b3f |
| institution | Kabale University |
| issn | 1367-2630 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj-art-015a6ed5cc1f48508e4b92cbafca4b3f2025-02-11T11:36:50ZengIOP PublishingNew Journal of Physics1367-26302025-01-0127202301410.1088/1367-2630/adaedcCosmic muon flux attenuation methods for superconducting qubit experimentsElia Bertoldo0https://orcid.org/0000-0001-6260-0325Victor Pérez Sánchez1https://orcid.org/0009-0001-0604-929XMaria Martínez2https://orcid.org/0000-0002-9043-4691Manel Martínez3https://orcid.org/0000-0002-9763-9155Hawraa Khalife4https://orcid.org/0000-0003-0464-6979Pol Forn-Díaz5https://orcid.org/0000-0003-4365-5157Institut de Física d’Altes Energies , The Barcelona Institute of Science and Technology, 08193 Bellaterra, SpainLaboratorio Subterráneo de Canfranc , 22880 Canfranc-Estación, SpainCentro de Astropartículas y Física de Altas Energías, Universidad de Zaragoza , 50009 Zaragoza, SpainInstitut de Física d’Altes Energies , The Barcelona Institute of Science and Technology, 08193 Bellaterra, Spain; Qilimanjaro Quantum Tech , 08007 Barcelona, SpainIRFU , CEA, Université Paris-Saclay, 91191 Saclay, FranceInstitut de Física d’Altes Energies , The Barcelona Institute of Science and Technology, 08193 Bellaterra, Spain; Qilimanjaro Quantum Tech , 08007 Barcelona, SpainWe propose and demonstrate two practical mitigation methods to attenuate the cosmic muon flux, compatible with experiments involving superconducting qubits: shallow underground sites and device orientation. Using a specifically-built cosmic muon detector, we identify underground sites, widely present in urban environments, where significant attenuation of cosmic muon flux, up to a factor 35 for 100 m depths, can be attained. Furthermore, we employ two germanium wafers in an above-ground laboratory, each equipped with a particle sensor, to show how the orientation of a chip with respect to the sky affects the amount and type of energy deposited on the substrate by ionizing radiation. We observe that the horizontal detector sees more counts at lower energy, while the vertical one is impacted by more particles at higher energy. The methods here described proposed ways to directly understand and reduce the effects of cosmic rays on qubits by attenuating the source of this type of decoherence, complementing existing on-chip mitigation strategies. We expect that both on-chip and off-chip methods combined will become ubiquitous in quantum technologies based on superconducting qubit circuits.https://doi.org/10.1088/1367-2630/adaedcquantum computingmuonscosmic raysionizing radiationsuperconducting qubitsqubits |
| spellingShingle | Elia Bertoldo Victor Pérez Sánchez Maria Martínez Manel Martínez Hawraa Khalife Pol Forn-Díaz Cosmic muon flux attenuation methods for superconducting qubit experiments New Journal of Physics quantum computing muons cosmic rays ionizing radiation superconducting qubits qubits |
| title | Cosmic muon flux attenuation methods for superconducting qubit experiments |
| title_full | Cosmic muon flux attenuation methods for superconducting qubit experiments |
| title_fullStr | Cosmic muon flux attenuation methods for superconducting qubit experiments |
| title_full_unstemmed | Cosmic muon flux attenuation methods for superconducting qubit experiments |
| title_short | Cosmic muon flux attenuation methods for superconducting qubit experiments |
| title_sort | cosmic muon flux attenuation methods for superconducting qubit experiments |
| topic | quantum computing muons cosmic rays ionizing radiation superconducting qubits qubits |
| url | https://doi.org/10.1088/1367-2630/adaedc |
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