Distinct Lifetimes for $X$ and $Z$ Loop Measurements in a Majorana Tetron Device
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arXiv
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| Formato: | Preprint |
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2025
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| author | Aghaee, Morteza Alam, Zulfi Andersen, Rikke Andrzejczuk, Mariusz Antipov, Andrey Astafev, Mikhail Avilovas, Lukas Azizimanesh, Ahmad Banek, Eric Bauer, Bela Becker, Jonathan Bhaskar, Umesh Kumar Boa, Andrea G. Boddapati, Srini Bohac, Nichlaus Bommer, Jouri D. S. Borovsky, Jan Bourdet, Léo Boutin, Samuel Casparis, Lucas Chakravarthi, Srivatsa Chalabi, Hamidreza Chapman, Benjamin J. Chatzaras, Nikolaos Chien, Tzu-Chiao Cho, Jason Codd, Patrick Cole, William Cooper, Paul W. Corsetti, Fabiano Cui, Ajuan Dandachi, Tareq El Dinesen, Celine Ekefjärd, Andreas Fallahi, Saeed Galletti, Luca Gardner, Geoffrey C. Gonzalez, Gonzalo Leon Govender, Deshan Griggio, Flavio Grigoryan, Ruben Grijalva, Sebastian Gronin, Sergei Gukelberger, Jan Hamdast, Marzie Hamida, A. Ben Hansen, Esben Bork Hansen, Caroline Tynell Heedt, Sebastian Ho, Samantha Holgaard, Laurens van Hoogdalem, Kevin Hornibrook, John Ingerslev, Henrik Ivancevic, Lovro Jamo, Sherwan Jantos, Max Jensen, Thomas Jhoja, Jaspreet Singh Jones, Jeffrey C Joshi, Vidul Kalashnikov, Konstantin V. Kallaher, Ray Kalra, Rachpon Karimi, Farhad Karzig, Torsten Kimes, Seth King, Evelyn Kloster, Maren Elisabeth Knapp, Christina Koski, Jonne V. Kostamo, Pasi Laeven, Tom Lai, Jeffrey de Lange, Gijs Larsen, Thorvald W. Lee, Kyunghoon Li, Kongyi Li, Guangze Liang, Shuang Lindemann, Tyler Looij, Matthew Lucas, Marijn Lutchyn, Roman Madsen, Morten Hannibal Madulid, Nasiari Manfra, Michael J. Manjunath, Laveena Markussen, Signe Martinez, Esteban Mattila, Marco Mattinson, J. R. McNeil, R. P. G. Millan, Alba Pérez Mishmash, Ryan V. Mittal, Sarang Møllgaard, Christian de Moor, M. W. A. Morejon, Eduardo Puchol Morgan, Trevor Moussa, George Nabar, B. P. Narla, Anirudh Nayak, Chetan Nielsen, Jens Hedegaard Nielsen, William Hvidtfelt Padkær Nolet, Frédéric Nystrom, Michael J. O'Farrell, Eoin Ohki, Thomas A. Otani, Keita Papon, Camille Petersson, Karl D Petit, Luca Pikulin, Dima Rajpalke, Mohana Ramirez, Alejandro Alcaraz Razmadze, David Ren, Yuan Sadovskyy, Ivan Sainiemi, Lauri Saldaña, Juan Carlos Estrada Sanlorenzo, Irene Santos, Tatiane Pereira dos Schaal, Simon Schack, John Schmidgall, Emma R. Sfetsou, Christina Sfiligoj, Cristina Sinha, Sarat Sohr, Patrick Sørensen, Thomas L. Spiegelhauer, Kasper Stankević, Tomaš Stek, Lieuwe J. Strøm-Hansen, Patrick Suominen, Henri J. Suter, Judith Teicher, Samuel M. L. Tholapi, Raj Thomas, Mason Tom, D. W. Toomey, Emily Tracy, Joshua Turley, Michelle Turner, Matthew D. Upadhyay, Shivendra Urban, Ivan Viazmitinov, Dmitrii V. Viazmitinova, Anna Wulff Viegas, Beatriz Vogel, Dominik J. Watson, John Webster, Alex Weston, Joseph Williamson, Timothy Winkler, Georg W. van Woerkom, David J. Wuetz, Brian Paquelet Yang, Chung-Kai Shang-Jyun Yu Yucelen, Emrah Zamorano, Jesús Herranz Zeisel, Roland Zheng, Guoji Zimmerman, A. M. |
| author_facet | Aghaee, Morteza Alam, Zulfi Andersen, Rikke Andrzejczuk, Mariusz Antipov, Andrey Astafev, Mikhail Avilovas, Lukas Azizimanesh, Ahmad Banek, Eric Bauer, Bela Becker, Jonathan Bhaskar, Umesh Kumar Boa, Andrea G. Boddapati, Srini Bohac, Nichlaus Bommer, Jouri D. S. Borovsky, Jan Bourdet, Léo Boutin, Samuel Casparis, Lucas Chakravarthi, Srivatsa Chalabi, Hamidreza Chapman, Benjamin J. Chatzaras, Nikolaos Chien, Tzu-Chiao Cho, Jason Codd, Patrick Cole, William Cooper, Paul W. Corsetti, Fabiano Cui, Ajuan Dandachi, Tareq El Dinesen, Celine Ekefjärd, Andreas Fallahi, Saeed Galletti, Luca Gardner, Geoffrey C. Gonzalez, Gonzalo Leon Govender, Deshan Griggio, Flavio Grigoryan, Ruben Grijalva, Sebastian Gronin, Sergei Gukelberger, Jan Hamdast, Marzie Hamida, A. Ben Hansen, Esben Bork Hansen, Caroline Tynell Heedt, Sebastian Ho, Samantha Holgaard, Laurens van Hoogdalem, Kevin Hornibrook, John Ingerslev, Henrik Ivancevic, Lovro Jamo, Sherwan Jantos, Max Jensen, Thomas Jhoja, Jaspreet Singh Jones, Jeffrey C Joshi, Vidul Kalashnikov, Konstantin V. Kallaher, Ray Kalra, Rachpon Karimi, Farhad Karzig, Torsten Kimes, Seth King, Evelyn Kloster, Maren Elisabeth Knapp, Christina Koski, Jonne V. Kostamo, Pasi Laeven, Tom Lai, Jeffrey de Lange, Gijs Larsen, Thorvald W. Lee, Kyunghoon Li, Kongyi Li, Guangze Liang, Shuang Lindemann, Tyler Looij, Matthew Lucas, Marijn Lutchyn, Roman Madsen, Morten Hannibal Madulid, Nasiari Manfra, Michael J. Manjunath, Laveena Markussen, Signe Martinez, Esteban Mattila, Marco Mattinson, J. R. McNeil, R. P. G. Millan, Alba Pérez Mishmash, Ryan V. Mittal, Sarang Møllgaard, Christian de Moor, M. W. A. Morejon, Eduardo Puchol Morgan, Trevor Moussa, George Nabar, B. P. Narla, Anirudh Nayak, Chetan Nielsen, Jens Hedegaard Nielsen, William Hvidtfelt Padkær Nolet, Frédéric Nystrom, Michael J. O'Farrell, Eoin Ohki, Thomas A. Otani, Keita Papon, Camille Petersson, Karl D Petit, Luca Pikulin, Dima Rajpalke, Mohana Ramirez, Alejandro Alcaraz Razmadze, David Ren, Yuan Sadovskyy, Ivan Sainiemi, Lauri Saldaña, Juan Carlos Estrada Sanlorenzo, Irene Santos, Tatiane Pereira dos Schaal, Simon Schack, John Schmidgall, Emma R. Sfetsou, Christina Sfiligoj, Cristina Sinha, Sarat Sohr, Patrick Sørensen, Thomas L. Spiegelhauer, Kasper Stankević, Tomaš Stek, Lieuwe J. Strøm-Hansen, Patrick Suominen, Henri J. Suter, Judith Teicher, Samuel M. L. Tholapi, Raj Thomas, Mason Tom, D. W. Toomey, Emily Tracy, Joshua Turley, Michelle Turner, Matthew D. Upadhyay, Shivendra Urban, Ivan Viazmitinov, Dmitrii V. Viazmitinova, Anna Wulff Viegas, Beatriz Vogel, Dominik J. Watson, John Webster, Alex Weston, Joseph Williamson, Timothy Winkler, Georg W. van Woerkom, David J. Wuetz, Brian Paquelet Yang, Chung-Kai Shang-Jyun Yu Yucelen, Emrah Zamorano, Jesús Herranz Zeisel, Roland Zheng, Guoji Zimmerman, A. M. |
| contents | We present a hardware realization and measurements of a tetron qubit device in a superconductor-semiconductor heterostructure. The device architecture contains two parallel superconducting nanowires, which support four Majorana zero modes (MZMs) when tuned into the topological phase, and a trivial superconducting backbone. Two distinct readout interferometers are formed by connecting the superconducting structure to a series of quantum dots. We perform single-shot interferometric measurements of the fermion parity for the two loops, designed to implement Pauli-$X$ and $Z$ measurements of the tetron. Performing repeated single-shot measurements yields two widely separated time scales $τ_X = 14.5\pm 0.3 \, \mathrm{μs}$ and $τ_Z = 12.4\pm 0.4\, \mathrm{ms}$ for parity switches observed in the $X$ and $Z$ measurement loops, which we attribute to intra-wire parity switches and external quasiparticle poisoning, respectively. We estimate assignment errors of $\mathrm{err}^X_a=16\%$ and $\mathrm{err}^Z_a=0.5\%$ for $X$ and $Z$ measurement-based operations, respectively. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_08795 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Distinct Lifetimes for $X$ and $Z$ Loop Measurements in a Majorana Tetron Device Aghaee, Morteza Alam, Zulfi Andersen, Rikke Andrzejczuk, Mariusz Antipov, Andrey Astafev, Mikhail Avilovas, Lukas Azizimanesh, Ahmad Banek, Eric Bauer, Bela Becker, Jonathan Bhaskar, Umesh Kumar Boa, Andrea G. Boddapati, Srini Bohac, Nichlaus Bommer, Jouri D. S. Borovsky, Jan Bourdet, Léo Boutin, Samuel Casparis, Lucas Chakravarthi, Srivatsa Chalabi, Hamidreza Chapman, Benjamin J. Chatzaras, Nikolaos Chien, Tzu-Chiao Cho, Jason Codd, Patrick Cole, William Cooper, Paul W. Corsetti, Fabiano Cui, Ajuan Dandachi, Tareq El Dinesen, Celine Ekefjärd, Andreas Fallahi, Saeed Galletti, Luca Gardner, Geoffrey C. Gonzalez, Gonzalo Leon Govender, Deshan Griggio, Flavio Grigoryan, Ruben Grijalva, Sebastian Gronin, Sergei Gukelberger, Jan Hamdast, Marzie Hamida, A. Ben Hansen, Esben Bork Hansen, Caroline Tynell Heedt, Sebastian Ho, Samantha Holgaard, Laurens van Hoogdalem, Kevin Hornibrook, John Ingerslev, Henrik Ivancevic, Lovro Jamo, Sherwan Jantos, Max Jensen, Thomas Jhoja, Jaspreet Singh Jones, Jeffrey C Joshi, Vidul Kalashnikov, Konstantin V. Kallaher, Ray Kalra, Rachpon Karimi, Farhad Karzig, Torsten Kimes, Seth King, Evelyn Kloster, Maren Elisabeth Knapp, Christina Koski, Jonne V. Kostamo, Pasi Laeven, Tom Lai, Jeffrey de Lange, Gijs Larsen, Thorvald W. Lee, Kyunghoon Li, Kongyi Li, Guangze Liang, Shuang Lindemann, Tyler Looij, Matthew Lucas, Marijn Lutchyn, Roman Madsen, Morten Hannibal Madulid, Nasiari Manfra, Michael J. Manjunath, Laveena Markussen, Signe Martinez, Esteban Mattila, Marco Mattinson, J. R. McNeil, R. P. G. Millan, Alba Pérez Mishmash, Ryan V. Mittal, Sarang Møllgaard, Christian de Moor, M. W. A. Morejon, Eduardo Puchol Morgan, Trevor Moussa, George Nabar, B. P. Narla, Anirudh Nayak, Chetan Nielsen, Jens Hedegaard Nielsen, William Hvidtfelt Padkær Nolet, Frédéric Nystrom, Michael J. O'Farrell, Eoin Ohki, Thomas A. Otani, Keita Papon, Camille Petersson, Karl D Petit, Luca Pikulin, Dima Rajpalke, Mohana Ramirez, Alejandro Alcaraz Razmadze, David Ren, Yuan Sadovskyy, Ivan Sainiemi, Lauri Saldaña, Juan Carlos Estrada Sanlorenzo, Irene Santos, Tatiane Pereira dos Schaal, Simon Schack, John Schmidgall, Emma R. Sfetsou, Christina Sfiligoj, Cristina Sinha, Sarat Sohr, Patrick Sørensen, Thomas L. Spiegelhauer, Kasper Stankević, Tomaš Stek, Lieuwe J. Strøm-Hansen, Patrick Suominen, Henri J. Suter, Judith Teicher, Samuel M. L. Tholapi, Raj Thomas, Mason Tom, D. W. Toomey, Emily Tracy, Joshua Turley, Michelle Turner, Matthew D. Upadhyay, Shivendra Urban, Ivan Viazmitinov, Dmitrii V. Viazmitinova, Anna Wulff Viegas, Beatriz Vogel, Dominik J. Watson, John Webster, Alex Weston, Joseph Williamson, Timothy Winkler, Georg W. van Woerkom, David J. Wuetz, Brian Paquelet Yang, Chung-Kai Shang-Jyun Yu Yucelen, Emrah Zamorano, Jesús Herranz Zeisel, Roland Zheng, Guoji Zimmerman, A. M. Mesoscale and Nanoscale Physics Quantum Physics We present a hardware realization and measurements of a tetron qubit device in a superconductor-semiconductor heterostructure. The device architecture contains two parallel superconducting nanowires, which support four Majorana zero modes (MZMs) when tuned into the topological phase, and a trivial superconducting backbone. Two distinct readout interferometers are formed by connecting the superconducting structure to a series of quantum dots. We perform single-shot interferometric measurements of the fermion parity for the two loops, designed to implement Pauli-$X$ and $Z$ measurements of the tetron. Performing repeated single-shot measurements yields two widely separated time scales $τ_X = 14.5\pm 0.3 \, \mathrm{μs}$ and $τ_Z = 12.4\pm 0.4\, \mathrm{ms}$ for parity switches observed in the $X$ and $Z$ measurement loops, which we attribute to intra-wire parity switches and external quasiparticle poisoning, respectively. We estimate assignment errors of $\mathrm{err}^X_a=16\%$ and $\mathrm{err}^Z_a=0.5\%$ for $X$ and $Z$ measurement-based operations, respectively. |
| title | Distinct Lifetimes for $X$ and $Z$ Loop Measurements in a Majorana Tetron Device |
| topic | Mesoscale and Nanoscale Physics Quantum Physics |
| url | https://arxiv.org/abs/2507.08795 |