| Kiyohide Nomura | Last modified date：2023.11.22 |
Associate Professor /
condensed matter physics /
Department of Physics /
Faculty of Sciences
Presentations
| 1. | 野村 清英, Multicritical point, conformal field theory and duality, 統計力学セミナー StatPhys Seminar @ UTokyo Hongo, 2020.09, Critical phenomena are one of the important subjects in condensed matter physics. Many developments about critical phenomena, such as renormalization group, numerical methods etc. have been done. But, when the model has a multicritical point, the scaling behaviors become difficult due to the interference of multiple critical lines. So, conventional numerical methods are not useful near a multicritical point. We have studied several multicritical phenomena combining with the conformal field theory and numerical methods (level spectroscopy etc) [1,2]. And we discuss the relation with the duality, such as the Kramers-Wannier duality and the Ashkin-Teller self-duality [2]. [1] A.Kitazawa and K.N.: Phys. Rev. B 59, 11358 [2] S. Moriya and K. N: J. Phys. Soc. Jpn. 89, 093001 (2020). |
| 2. | Ashkin-Teller multicritical point and twisted boundary conditions. |
| 3. | Anomaly of a magnetic susceptibility in XXZ model for S=1/2 and comparison with an exact solution. |
| 4. | 野村 清英, Extension of the Lieb-‐Schultz-‐Mattis and Kolb theorem, STATPHYS26, 2016.07, [URL]. |
| 5. | Appllication of the LSM theorem to the quantum spin ladder with frustration. |
| 6. | 野村 清英, Extension of Lieb-Schultz-Mattis Theorem , ICNS 2015 (Changhua) , 2015.09, [URL]. |
| 7. | Extension of Lieb-Schultz-Mattis Theorem III. |
| 8. | Extension of Lieb-Schultz-Mattis Theorem II. |
| 9. | Commensurate-Incommensurate Transition using Complex Analysis. |
| 10. | Extension of the Lieb-Schultz-Mattis Theorem. |
| 11. | Extension of the Lieb-Schultz-Mattis Theorem. |
| 12. | Level Spectroscopy without the Bond-Inversion Symmetry --- In case of an Anisotropic S=1/2 Ladder with Alternating Rung Interactions. |
| 13. | Ground State of an Anisotropic S=1/2 Ladder with Alternating Rung Interactions IV. |
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