Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Nogaki, Kosuke"'
Autor:
Nogaki, Kosuke
甲第25103号
理博第5010号
新制||理||1715(附属図書館)
学位規則第4条第1項該当
Doctor of Agricultural Science
Kyoto University
DGAM
理博第5010号
新制||理||1715(附属図書館)
学位規則第4条第1項該当
Doctor of Agricultural Science
Kyoto University
DGAM
Externí odkaz:
http://hdl.handle.net/2433/288537
Autor:
Nogaki, Kosuke, Yanase, Youichi
Field-induced superconductivity has long presented a counterintuitive phenomenon and a pivotal challenge in condensed matter physics. In this Letter, we introduce a mechanism for achieving field-induced superconductivity wherein the sublattice degree
Externí odkaz:
http://arxiv.org/abs/2312.07053
Locally noncentrosymmetric structures in crystals are attracting much attention owing to emergent phenomena associated with the sublattice degree of freedom. The newly discovered heavy fermion superconductor CeRh$_2$As$_2$ is considered to be an exce
Externí odkaz:
http://arxiv.org/abs/2311.00324
Autor:
Chen, Xuezhi, Wang, Le, Ishizuka, Jun, Nogaki, Kosuke, Cheng, Yiwei, Yang, Fazhi, Zhang, Renjie, Chen, Zhenhua, Zhu, Fangyuan, Yanase, Youichi, Lv, Baiqing, Huang, Yaobo
Publikováno v:
Phys. Rev. X 14, 021048 (2024)
In quantum many-body systems, particularly, the ones with large near-EF density states, like flat bands or van Hove singularity (VHS), electron correlations often give rise to rich phase diagrams with multiple coexisting/competing orders occurring at
Externí odkaz:
http://arxiv.org/abs/2309.05895
UTe$_{2}$ is a strong candidate for a topological spin-triplet superconductor, and it is considered that the interplay of magnetic fluctuation and superconductivity is essential for the origin of the superconductivity. Despite various experiments sug
Externí odkaz:
http://arxiv.org/abs/2306.00405
Autor:
Nogaki, Kosuke, Shinaoka, Hiroshi
Publikováno v:
J. Phys. Soc. Jpn. 92, 035001 (2023)
Analytical continuation (AC) connects theoretical calculations and experimentally measurable quantities. The recently proposed Nevanlinna AC method is capable of accurately reproducing the sharp features of spectral functions at high frequencies whil
Externí odkaz:
http://arxiv.org/abs/2305.03449
Publikováno v:
SciPost Phys. Codebases 19 (2023)
We introduce a Julia implementation of the recently proposed Nevanlinna analytic continuation method. The method is based on Nevanlinna interpolants and, by construction, preserves the causality of a response function. For theoretical calculations wi
Externí odkaz:
http://arxiv.org/abs/2302.10476
Autor:
Shinaoka, Hiroshi, Wallerberger, Markus, Murakami, Yuta, Nogaki, Kosuke, Sakurai, Rihito, Werner, Philipp, Kauch, Anna
Publikováno v:
Phys. Rev. X 13, 021015 (2023)
Correlation functions of quantum systems -- central objects in quantum field theories -- are defined in high-dimensional space-time domains. Their numerical treatment thus suffers from the curse of dimensionality, which hinders the application of sop
Externí odkaz:
http://arxiv.org/abs/2210.12984
Autor:
Wallerberger, Markus, Badr, Samuel, Hoshino, Shintaro, Kakizawa, Fumiya, Koretsune, Takashi, Nagai, Yuki, Nogaki, Kosuke, Nomoto, Takuya, Mori, Hitoshi, Otsuki, Junya, Ozaki, Soshun, Sakurai, Rihito, Vogel, Constanze, Witt, Niklas, Yoshimi, Kazuyoshi, Shinaoka, Hiroshi
Publikováno v:
SoftwareX 21, 101266 (2023)
We introduce sparse-ir, a collection of libraries to efficiently handle imaginary-time propagators, a central object in finite-temperature quantum many-body calculations. We leverage two concepts: firstly, the intermediate representation (IR), an opt
Externí odkaz:
http://arxiv.org/abs/2206.11762
Autor:
Nogaki, Kosuke, Yanase, Youichi
The discovery of the multiple $H$-$T$ phase diagram of CeRh$_2$As$_2$ offers a new route to designing topological superconductors. Although weak-coupling theories explain the experimental phase diagram qualitatively, a quantitative discrepancy betwee
Externí odkaz:
http://arxiv.org/abs/2206.04288