Condensed Matter Theory Laboratory
Research Areas
| The ultimate goal of our research is to understand theoretically the various properties of materials of macroscopic scale from the physical laws that govern microscopic world. Many-particle 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. Furthermore, we study quantum phenomena in mesoscopic systems of nanometer scale and statistical physics of random systems. |
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Research Subject
| (1) | Strongly-correlated electron systems |
| (2) | Quantum phase transitions |
| (3) | Mesoscopic systems |
List of Selected Publications
| (1) | Schnyder, A.P., Ryu, S., Furusaki, A., and Ludwig, A.W.W.: "Classification of topological insulators and superconductors in three spatial dimensions." Phys. Rev. B, 78, 195125 (2008). |
| (2) | Hikihara, T., Kecke, L., Momoi, T., and Furusaki, A.: "Vector chiral and multipolar orders in the spin-1/2 frustrated ferromagnetic chain in magnetic field." Phys. Rev. B, 78, 144404 (2008). |
| (3) | Obuse, H., Subramaniam, A.R., Furusaki, A., Gruzberg, I.A., and Ludwig, A.W.W.: "Boundary multifractality at the integer quantum Hall transition: implications for the critical theory." Phys. Rev. Lett., 101, 116802 (2008). |
| (4) | Onoda, S., Sugimoto, N., and Nagaosa, N.: "Quantum transport theory of anomalous electric, thermoelectric, and thermal Hall effects in ferromagnets." Phys. Rev. B, 77, 165103 (2008). |
| (5) | Matveev, K.A., Furusaki, A., and Glazman, L.I.: "Bosonization of strongly interacting one-dimensional electrons." Phys. Rev. B, 76, 155440 (2007). |
| (6) | Ryu, S., Mudry, C., Obuse, H., and Furusaki, A.: "Z2 topological term, the global anomaly, and the two-dimensional symplectic symmetry class of Anderson localization." Phys. Rev. Lett., 99, 116601 (2007). |
| (7) | Onoda, S. and Nagaosa, N.: "Chiral spin pairing in helical magnets." Phys. Rev. Lett., 99, 027206 (2007). |
| (8) | Obuse, H., Subramaniam, A.R., Furusaki, A., Gruzberg, I.A., and Ludwig, A.W.W.: "Multifractality and conformal invariance at 2D metal-insulator transition in the spin-orbit symmetry class." Phys. Rev. Lett., 98, 156802 (2007). |
| (9) | Momoi, T., Sindzingre, P., and Shannon, N.: "Octupolar order in the multiple spin exchange model on a triangular lattice." Phys. Rev. Lett., 97, 257204 (2006). |
| (10) | Shannon, N., Momoi, T., and Sindzingre, P.: "Nematic order in square lattice frustrated ferromagnets." Phys. Rev. Lett., 96, 027213 (2006). |