2022 Fiscal Year Annual Research Report
Non-linear Phenomena in Hybrid Quantum Systems
| Project/Area Number |
19H00662
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| Research Institution | NTT Basic Research Laboratories |
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Principal Investigator |
Munro William 日本電信電話株式会社NTT物性科学基礎研究所, 量子科学イノベーション研究部, 上席特別研究員 (50599553)
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| Co-Investigator(Kenkyū-buntansha) |
根本 香絵 沖縄科学技術大学院大学, 量子情報科学・技術ユニット, 教授 (80370104)
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| Project Period (FY) |
2019-04-01 – 2023-03-31
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| Keywords | Hybrid Quantum Systems / Quantum Phenomena / Quantum nonlinearity / Superradiance / Quantum Thermodynamics / Quantum Simulation / Quantum Correlations / Quantum Information |
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| Outline of Annual Research Achievements |
Our primary focus in the last year of the project was to explore whether quantum correlations can be transported via HQS nonlinear effects. We showed that by utilising reservoir engineering that entanglement can be generated between two spins ensembles which are not coupled to each other or even coupled to the same reservoir. The degree of entanglement is maximised for a large number of spins in the central domain. Further the speed of entanglement generation is also maximised for a larger spin population in the central domain. Correlation transport shows a super radiant like enhancement. This in principle allows on to overcome the effects of dephasing present in each of the individual ensembles. Further entanglement generation is not limited to the three spin-domain case, but can also occur with a larger number of domains. This work was submitted to PRA in March 2023.
A second aspect was associated with quantum simulations on NISQ processors. The current systems can perform universal simulation. We took this a significant step further and generated a many-body quantum state of matter that show collective effects and explored a practical simulation application of them. Investigating a 61-qubit device, we are able to create ergodic or localized states of matters. Given the collective dynamics of the system and individual qubit control, we were able to use quantum neuronal sensing process to efficiently classify two different types of many-body phenomena. This could be achieved by measuring only one qubit.
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| Research Progress Status |
令和4年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
令和4年度が最終年度であるため、記入しない。
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[Presentation] Quantum Neuronal Sensing on a 61-Qubit NISQ Superconducting Processor2023
Author(s)
William J. Munro, Ming Gong, He-Liang, Shiyu Wang, Chu Guo, Shaowei Li, Y..., Akitada Sakurai, Kae Nemoto, Yong-Heng Huo, Chao-Yang Lu, Cheng-Zhi Peng, Xiaobo Zhu, and Jian-Wei Pan
Organizer
APS March Meeting, Las Vegas (US), 6 - 10 March (2023)
Int'l Joint Research
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[Presentation] Compression of the Inhomogeneous Broadening of Ensemble Rare-earth Ions Using a Mechanical Resonance2022
Author(s)
R. Ohta, T. Hatomura, M. Hiraishi, V. M. Bastidas, X. Xu, K. Oguri, W. J. Munro, and H. Okamoto
Organizer
CLEO Pacific Rim, Sapporo (Japan), 31 July to 5 August, (2022)
Int'l Joint Research
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[Presentation] Strolling through a NISQ processor2022
Author(s)
William J. Munro, Ming Gong, He-Liang, Shiyu Wang, Chu Guo, Shaowei Li, Y..., Akitada Sakurai, Kae Nemoto, Yong-Heng Huo, Chao-Yang Lu, Cheng-Zhi Peng, Xiaobo Zhu, and Jian-Wei Pan
Organizer
Quantum 2.0, Boston, USA, 13 - 16 June (2022)
Int'l Joint Research
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[Presentation] Strolling through a quantum processor2022
Author(s)
William J. Munro, Ming Gong, He-Liang, Shiyu Wang, Chu Guo, Shaowei Li, Y..., Akitada Sakurai, Kae Nemoto, Yong-Heng Huo, Chao-Yang Lu, Cheng-Zhi Peng, Xiaobo Zhu, and Jian-Wei Pan
Organizer
CLEO 2022, San Jose, USA, 15 - 20 May (2022)
Int'l Joint Research / Invited
