| 研究課題/領域番号 |
20K03746
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| 研究機関 | 名古屋大学 |
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研究代表者 |
Buscemi F. 名古屋大学, 情報学研究科, 教授 (80570548)
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| 研究期間 (年度) |
2020-04-01 – 2023-03-31
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| キーワード | quantum entanglement / quantum thermodynamics / quantum channels |
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| 研究実績の概要 |
My research for FY2020 has closely followed the proposed plan. I have pursued three main research directions: (1) I have explored the general convex-analytic and algebraic structure of quantum resource theories; (2) I have studied nonequilibrium quantum thermodynamic systems as instances of information-theoretic resources; (3) I have proposed new methods to certify and evaluate quantum resources by means of numerical simulations. Concerning point (1), my co-authors and I were able to provide sufficient conditions, expressed in terms of information-theoretic quantities, for the existence of an exact resource morphism transforming one resource into another. The results have been published on Quantum and on the Journal of Mathematical Physics A. In particular, the result on Quantum has been featured in a dedicated Perspective article. Concerning point (2), my co-authors and I improved on existing bounds expressing the second law of thermodynamics in open quantum systems. Our results have been published on Physical Review A. Concerning point (3), my co-authors and I have proposed analytical and numerical tests of quantumness for bipartite communication channels, and a novel theoretical framework for the learning of quantum measurements. Our results have been published on Physical Review Letters and Physical Review A, and have been selected as PRL Highlights and Editors’ Suggestions.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
1: 当初の計画以上に進展している
理由
According to the original proposal, the first year would have been devoted to the development of a mathematical framework to be later used to characterize quantum resource theories. Such a framework has been not only developed, as promised, but has already been used to construct explicit numerical benchmarks of quantumness for bipartite communication channels. Moreover, two papers published this year have been considered impactful enough to be featured in a dedicated Perspective Article (on Quantum) and be selected as a PRL Highlight and Editors' Suggestion (Physical Review Letters). Moreover, other results have almost been completed. All things considered, the results obtained during the first year have exceeded my expectations.
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| 今後の研究の推進方策 |
During the second year of this project, FY2021, the aim is to extend the theoretical insights gained in FY2020 to areas closer to applied technologies, such as quantum devices benchmarking and learning. We expect that we will be able to work in collaboration with IBM to develop some new tests for noisy intermediate-scale quantum (NISQ) devices. At the same time, the theoretical investigation will continue, building upon the new theory developed so far. In particular, we expect to achieve a new understanding for the sender-receiver correlations that can be established by means of a quantum communication device, and the role that quantum communication plays in resource theories like quantum thermodynamics.
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| 次年度使用額が生じた理由 |
The reason is that due to COVID19 pandemics most of the planned travels and invitations planned for FY2020 have been postponed.
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