Welcome to UTokyo Komaba quantum information theory group site!
We work on foundational aspects of quantum information theory, aiming to understand operational significance of quantum properties using the tools in physics, information theory, and computer sciences. We are generally interested in wide range of topics in quantum information, but we have been paricularly focusing on
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Quantum resource theories
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Quantum entanglement theory
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Quantum thermodynamics
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Continuous-variable qunatum information
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Quantum error correction and mitigation
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Quantum algorithms
If you are interested in discussing with us or knowing more about the group, feel free to shoot an email to ryujitakagi.pat[at]gmail.com
news
| 2025 Aug | Our work that introuces a new measure of non-Gaussianity has been posted on arXiv. |
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| 2025 Aug | Kaito has received the best presentation award in his session at Condensed Matter Physics Summer School. Congratulations! |
| 2025 Aug | Oliver’s work that extended majorization theory and its application to continuous quasiprobability has been posted on arXiv. Joint work with Twesh Upadhyaya, Zacharie Van Herstraeten, Jack Davis, Nikolaos Koukoulekidis, and Ulysse Chabaud. |
| 2025 Aug | Our work that established a trade-off relation between irreversibility and resource cost of channel implementation has been posted on arXiv. Joint work with Hiroyasu Tajima, Koji Yamaguchi, and Yui Kuramochi. |
| 2025 May | Our work that introduced a quantum extenstion of dynamic programming has been published in Physical Review Letters. Joint work with Jeongrak Son, Marek Gluza, and Nelly Ng at Nanyang Technological University Singapore. |