Chief Scientist Laboratories Condensed Matter Theory Laboratory
Chief Scientist: Akira Furusaki (D.Sc.)
Research Summary
We aim to understand theoretically various properties of materials of macroscopic scale from the physical laws that govern microscopic world. Many-electron systems having infinite degrees of freedom exhibit rich physical phenomena: they can have phases with spontaneously broken symmetry and transitions among these phases. A typical example is offered by magnetism and superconductivity in strongly-correlated electron systems, such as transition metal oxides and molecular conductors, which are the main research subjects of our laboratory. Our recent research subjects include unconventional ordered states and spin liquids in strongly frustrated quantum magnets and other new kinds of quantum phases like topological insulators and topological superconductors. Furthermore, we study quantum phenomena in mesoscopic systems of nanometer scale and statistical physics of random systems.
Main Research Fields
- Mathematical & Physical Sciences
Related Research Fields
- Interdisciplinary Science & Engineering
- Physics
Keywords
- Condensed Matter Theory
- Electric Transport
- Magnetism
- Superconductivity
Selected Publications
- 1.
Aksoy, O.M., Mudry, C., Furusaki, A., Tiwari, A.:
"Lieb-Schultz-Mattis anomalies and web of dualities induced by gauging in quantum spin chains"
SciPost Phys. 16, 022 (2024). - 2.
Momoi, T.:
"Dynamics of quantum spin-nematics: Comparisons with canted antiferromagnets"
Phys. Rev. Research 6, 013169 (2024). - 3.
Fuji Y., Furusaki, A.:
"Bridging three-dimensional coupled-wire models and cellular topological states: Solvable models for topological and fraction orders"
Phys. Rev. Research 5, 043108 (2023). - 4.
Yao, Y., Furusaki, A.:
"A geometric approach to Lieb-Schultz-Mattis theorem without translation symmetry under inversion or rotation symmetry"
Phys. Rev. B 106, 045125 (2022). - 5.
Yao, Y., Furusaki, A.:
"Parafermionization, bosonization, and critical parafermionic theories"
J. High Energy Phys. 2021, 285 (2021). - 6.
Naka, M., Motomo, Y., Seo, H.:
"Perovskite as a spin current generator"
Phys. Rev. B 103, 125114 (2021). - 7.
Wang, R.-B., Furusaki, A., Starykh, O.A.:
"Majorana end states in an interacting quantum wire"
Phys. Rev. B 102, 165147 (2020). - 8.
Lee, E., Furusaki, A., Yang, B.-J.:
"Fractional charge bound to a vortex in two-dimensional topological crystalline insulators"
Phys. Rev. B 101, 241109 (2020). - 9.
Naka, M., Hayami, S., Kusunose, H., Yanagi, Y., Motome, Y., Seo, H.:
"Spin current generation in organic antiferromagnets"
Nature Commun. 10, 4305 (2019). - 10.
Mudry, C., Furusaki, A., Morimoto, T., Hikihara, T.:
"Quantum phase transitions beyond Landau-Ginzburg theory in one-dimensional space revisited"
Phys. Rev. B 99, 205153 (2019).
Recent Research Results
Dec. 1, 2017
Monopole current offers way to control magnets
Nov. 20, 2015
Melting of frozen frustrations
Mar. 27, 2015
Frustration produces a quantum playground
Annual research report
Related Links
Lab Members
Principal investigator
- Akira Furusaki
- Chief Scientist
Core members
- Tsutomu Momoi
- Senior Research Scientist
- Shigeki Onoda
- Senior Research Scientist
- Hitoshi Seo
- Senior Research Scientist
- Yuki Yamazaki
- Postdoctoral Researcher
- Tatsuya Amitani
- Junior Research Associate
Contact Information
2-1 Hirosawa, Wako, Saitama 351-0198, Japan
Email: furusaki [at] riken.jp