Tomonari Mizoguchi

Tomonari Mizoguchi is an Assistant Professor in the Department of Physics at University of Tsukuba's College of Mathematics and Physics, where he works in the Quantum theory of condensed matter research group led by Professor Yasuhiro Hatsugai. His research focuses on topological phases, flat band systems, frustrated magnets, strong spin-orbit coupling systems, Dirac electrons, thermoelectric effects, spin-Hall effects, superconductivity, and orbital magnetism.

Dr. Mizoguchi received his Bachelor's degree (2012), Master's degree (2014), and Ph.D. (2017) in Physics from the University of Tokyo, where he was supervised by Professor Masao Ogata. His academic journey included the Advanced Leading Graduate Course for Photon Science (ALPS) from 2014-2017, followed by a postdoctoral position at Gakushuin University (2017-2018) under Professor Masafumi Udagawa, before joining University of Tsukuba as a Research Associate in 2018 and subsequently becoming an Assistant Professor.

His research primarily investigates topological quantum phenomena in condensed matter systems, with particular emphasis on flat band engineering, molecular-orbital representation techniques, and the exploration of novel topological phases including higher-order topological insulators and quantum spin liquids. He has developed systematic methods for constructing topological flat-band models and has made significant contributions to understanding Dirac electron systems, particularly type-I, II, and III Dirac fermions. His work bridges theoretical concepts with potential experimental realizations in materials like polymerized triptycene and other covalent honeycomb structures.

Analysis of his recent publications reveals a strong focus on advancing the understanding of topological materials through innovative modeling approaches. His research trajectory shows progression from fundamental studies of Dirac electrons and frustrated magnetism toward more complex topological phenomena, including higher-order topological phases, square-root topological systems, and the intersection of topology with quantum information concepts. The consistent application of molecular-orbital representation across various lattice structures represents a unifying methodology in his work.

Dr. Mizoguchi is an active member of the Japanese Physical Society across multiple divisions (1, 3, 4, 7, 8, 11) and serves on the Executive Committee of Division 7 (October 2024-September 2025). His work has received recognition through selections for special features including 'Top 10 articles highly cited in 2024' in the Journal of the Physical Society of Japan and 'Editors' Choice' features.

As an educator, Dr. Mizoguchi teaches Quantum Mechanics II annually and has previously taught Introduction to Condensed Matter Physics and Theoretical Physics II at the graduate level. He has also delivered specialized lectures on topological material phases at Tokyo Metropolitan University. His research group collaborates extensively with international institutions including University of Toronto and Max Planck Institute in Dresden, reflecting the global impact of his work in theoretical condensed matter physics.