Verification of a resetting protocol for an uncontrolled superconducting qubit
Abstract Quantum resetting protocols allow a quantum system to be sent to a state in the past by making it interact with quantum probes when neither the free evolution of the system nor the interaction is controlled. We experimentally verify the simplest non-trivial case of a quantum resetting proto...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2020-12-01
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| Series: | npj Quantum Information |
| Online Access: | https://doi.org/10.1038/s41534-020-00329-3 |
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| author | Ming Gong Feihu Xu Zheng-Da Li Zizhu Wang Yu-Zhe Zhang Yulin Wu Shaowei Li Youwei Zhao Shiyu Wang Chen Zha Hui Deng Zhiguang Yan Hao Rong Futian Liang Jin Lin Yu Xu Cheng Guo Lihua Sun Juno Clark Cheng-Zhi Peng Yu-Ao Chen Xiaobo Zhu Jian-Wei Pan |
| author_facet | Ming Gong Feihu Xu Zheng-Da Li Zizhu Wang Yu-Zhe Zhang Yulin Wu Shaowei Li Youwei Zhao Shiyu Wang Chen Zha Hui Deng Zhiguang Yan Hao Rong Futian Liang Jin Lin Yu Xu Cheng Guo Lihua Sun Juno Clark Cheng-Zhi Peng Yu-Ao Chen Xiaobo Zhu Jian-Wei Pan |
| author_sort | Ming Gong |
| collection | DOAJ |
| description | Abstract Quantum resetting protocols allow a quantum system to be sent to a state in the past by making it interact with quantum probes when neither the free evolution of the system nor the interaction is controlled. We experimentally verify the simplest non-trivial case of a quantum resetting protocol, known as the $${{\mathcal{W}}}_{4}$$ W 4 protocol, with five superconducting qubits, testing it with different types of free evolutions and target–probe interactions. After projection, we obtained a reset state fidelity as high as 0.951, and the process fidelity was found to be 0.792. We also implemented 100 randomly chosen interactions and demonstrated an average success probability of 0.323 for $$\left|1\right\rangle$$ 1 and 0.292 for $$\left|-\right\rangle$$ − , and experimentally confirmed the nonzero probability of success for unknown interactions; the numerical simulated values are about 0.3. Our experiment shows that the simplest quantum resetting protocol can be implemented with current technologies, making such protocols a valuable tool in the eternal fight against unwanted evolution in quantum systems. |
| format | Article |
| id | doaj-art-f9524351835f42eb9e508815e9074d96 |
| institution | Kabale University |
| issn | 2056-6387 |
| language | English |
| publishDate | 2020-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Information |
| spelling | doaj-art-f9524351835f42eb9e508815e9074d962025-01-26T12:46:18ZengNature Portfolionpj Quantum Information2056-63872020-12-01611910.1038/s41534-020-00329-3Verification of a resetting protocol for an uncontrolled superconducting qubitMing Gong0Feihu Xu1Zheng-Da Li2Zizhu Wang3Yu-Zhe Zhang4Yulin Wu5Shaowei Li6Youwei Zhao7Shiyu Wang8Chen Zha9Hui Deng10Zhiguang Yan11Hao Rong12Futian Liang13Jin Lin14Yu Xu15Cheng Guo16Lihua Sun17Juno Clark18Cheng-Zhi Peng19Yu-Ao Chen20Xiaobo Zhu21Jian-Wei Pan22Hefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaInstitute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaHefei National Laboratory for Physical Sciences at the Microscale and Department of Modern Physics, University of Science and Technology of ChinaAbstract Quantum resetting protocols allow a quantum system to be sent to a state in the past by making it interact with quantum probes when neither the free evolution of the system nor the interaction is controlled. We experimentally verify the simplest non-trivial case of a quantum resetting protocol, known as the $${{\mathcal{W}}}_{4}$$ W 4 protocol, with five superconducting qubits, testing it with different types of free evolutions and target–probe interactions. After projection, we obtained a reset state fidelity as high as 0.951, and the process fidelity was found to be 0.792. We also implemented 100 randomly chosen interactions and demonstrated an average success probability of 0.323 for $$\left|1\right\rangle$$ 1 and 0.292 for $$\left|-\right\rangle$$ − , and experimentally confirmed the nonzero probability of success for unknown interactions; the numerical simulated values are about 0.3. Our experiment shows that the simplest quantum resetting protocol can be implemented with current technologies, making such protocols a valuable tool in the eternal fight against unwanted evolution in quantum systems.https://doi.org/10.1038/s41534-020-00329-3 |
| spellingShingle | Ming Gong Feihu Xu Zheng-Da Li Zizhu Wang Yu-Zhe Zhang Yulin Wu Shaowei Li Youwei Zhao Shiyu Wang Chen Zha Hui Deng Zhiguang Yan Hao Rong Futian Liang Jin Lin Yu Xu Cheng Guo Lihua Sun Juno Clark Cheng-Zhi Peng Yu-Ao Chen Xiaobo Zhu Jian-Wei Pan Verification of a resetting protocol for an uncontrolled superconducting qubit npj Quantum Information |
| title | Verification of a resetting protocol for an uncontrolled superconducting qubit |
| title_full | Verification of a resetting protocol for an uncontrolled superconducting qubit |
| title_fullStr | Verification of a resetting protocol for an uncontrolled superconducting qubit |
| title_full_unstemmed | Verification of a resetting protocol for an uncontrolled superconducting qubit |
| title_short | Verification of a resetting protocol for an uncontrolled superconducting qubit |
| title_sort | verification of a resetting protocol for an uncontrolled superconducting qubit |
| url | https://doi.org/10.1038/s41534-020-00329-3 |
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