A Superconducting Qubit-Resonator Quantum Processor with Effective All-to-All Connectivity
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| Format: | Preprint |
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2025
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| author | Renger, Michael Verjauw, Jeroen Wurz, Nicola Hosseinkhani, Amin Ockeloen-Korppi, Caspar Liu, Wei Rath, Aniket Thapa, Manish J. Vigneau, Florian Wybo, Elisabeth Bergholm, Ville Chan, Chun Fai Csatári, Bálint Dahl, Saga Davletkaliyev, Rakhim Giri, Rakshyakar Gusenkova, Daria Heimonen, Hermanni Hiltunen, Tuukka Hsu, Hao Hyyppä, Eric Ikonen, Joni Jones, Tyler Khalid, Shabeeb Kim, Seung-Goo Koistinen, Miikka Komlev, Anton Kotilahti, Janne Kukushkin, Vladimir Lamprich, Julia Landra, Alessandro Lee, Lan-Hsuan Li, Tianyi Liebermann, Per Majumder, Sourav Mäntylä, Janne Marxer, Fabian van de Griend, Arianne Meijer - Milchakov, Vladimir Mrożek, Jakub Nath, Jayshankar Orell, Tuure Papič, Miha Partanen, Matti Plyushch, Alexander Pogorzalek, Stefan Ritvas, Jussi Romero, Pedro Figueroa Sampo, Ville Seppälä, Marko Selinmaa, Ville Sundström, Linus Takmakov, Ivan Tarasinski, Brian Tuorila, Jani Tyrkkö, Olli Välimaa, Alpo Wesdorp, Jaap Yang, Ping Yu, Liuqi Heinsoo, Johannes Vepsäläinen, Antti Kindel, William Ku, Hsiang-Sheng Deppe, Frank |
| author_facet | Renger, Michael Verjauw, Jeroen Wurz, Nicola Hosseinkhani, Amin Ockeloen-Korppi, Caspar Liu, Wei Rath, Aniket Thapa, Manish J. Vigneau, Florian Wybo, Elisabeth Bergholm, Ville Chan, Chun Fai Csatári, Bálint Dahl, Saga Davletkaliyev, Rakhim Giri, Rakshyakar Gusenkova, Daria Heimonen, Hermanni Hiltunen, Tuukka Hsu, Hao Hyyppä, Eric Ikonen, Joni Jones, Tyler Khalid, Shabeeb Kim, Seung-Goo Koistinen, Miikka Komlev, Anton Kotilahti, Janne Kukushkin, Vladimir Lamprich, Julia Landra, Alessandro Lee, Lan-Hsuan Li, Tianyi Liebermann, Per Majumder, Sourav Mäntylä, Janne Marxer, Fabian van de Griend, Arianne Meijer - Milchakov, Vladimir Mrożek, Jakub Nath, Jayshankar Orell, Tuure Papič, Miha Partanen, Matti Plyushch, Alexander Pogorzalek, Stefan Ritvas, Jussi Romero, Pedro Figueroa Sampo, Ville Seppälä, Marko Selinmaa, Ville Sundström, Linus Takmakov, Ivan Tarasinski, Brian Tuorila, Jani Tyrkkö, Olli Välimaa, Alpo Wesdorp, Jaap Yang, Ping Yu, Liuqi Heinsoo, Johannes Vepsäläinen, Antti Kindel, William Ku, Hsiang-Sheng Deppe, Frank |
| contents | In this work we introduce a superconducting quantum processor architecture that uses a transmission-line resonator to implement effective all-to-all connectivity between six transmon qubits. This architecture can be used as a test-bed for algorithms that benefit from high connectivity. We show that the central resonator can be used as a computational element, which offers the flexibility to encode a qubit for quantum computation or to utilize its bosonic modes which further enables quantum simulation of bosonic systems. To operate the quantum processing unit (QPU), we develop and benchmark the qubit-resonator conditional Z gate and the qubit-resonator MOVE operation. The latter allows for transferring a quantum state between one of the peripheral qubits and the computational resonator. We benchmark the QPU performance and achieve a genuinely multi-qubit entangled Greenberger-Horne-Zeilinger (GHZ) state over all six qubits with a readout-error mitigated fidelity of $0.86$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_10903 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A Superconducting Qubit-Resonator Quantum Processor with Effective All-to-All Connectivity Renger, Michael Verjauw, Jeroen Wurz, Nicola Hosseinkhani, Amin Ockeloen-Korppi, Caspar Liu, Wei Rath, Aniket Thapa, Manish J. Vigneau, Florian Wybo, Elisabeth Bergholm, Ville Chan, Chun Fai Csatári, Bálint Dahl, Saga Davletkaliyev, Rakhim Giri, Rakshyakar Gusenkova, Daria Heimonen, Hermanni Hiltunen, Tuukka Hsu, Hao Hyyppä, Eric Ikonen, Joni Jones, Tyler Khalid, Shabeeb Kim, Seung-Goo Koistinen, Miikka Komlev, Anton Kotilahti, Janne Kukushkin, Vladimir Lamprich, Julia Landra, Alessandro Lee, Lan-Hsuan Li, Tianyi Liebermann, Per Majumder, Sourav Mäntylä, Janne Marxer, Fabian van de Griend, Arianne Meijer - Milchakov, Vladimir Mrożek, Jakub Nath, Jayshankar Orell, Tuure Papič, Miha Partanen, Matti Plyushch, Alexander Pogorzalek, Stefan Ritvas, Jussi Romero, Pedro Figueroa Sampo, Ville Seppälä, Marko Selinmaa, Ville Sundström, Linus Takmakov, Ivan Tarasinski, Brian Tuorila, Jani Tyrkkö, Olli Välimaa, Alpo Wesdorp, Jaap Yang, Ping Yu, Liuqi Heinsoo, Johannes Vepsäläinen, Antti Kindel, William Ku, Hsiang-Sheng Deppe, Frank Quantum Physics In this work we introduce a superconducting quantum processor architecture that uses a transmission-line resonator to implement effective all-to-all connectivity between six transmon qubits. This architecture can be used as a test-bed for algorithms that benefit from high connectivity. We show that the central resonator can be used as a computational element, which offers the flexibility to encode a qubit for quantum computation or to utilize its bosonic modes which further enables quantum simulation of bosonic systems. To operate the quantum processing unit (QPU), we develop and benchmark the qubit-resonator conditional Z gate and the qubit-resonator MOVE operation. The latter allows for transferring a quantum state between one of the peripheral qubits and the computational resonator. We benchmark the QPU performance and achieve a genuinely multi-qubit entangled Greenberger-Horne-Zeilinger (GHZ) state over all six qubits with a readout-error mitigated fidelity of $0.86$. |
| title | A Superconducting Qubit-Resonator Quantum Processor with Effective All-to-All Connectivity |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2503.10903 |