I am a member of “Quantum mechanics research group” (PI: Prof. Takayuki Uozumi) in Department of Physics and Electronics, Osaka Prefecture University [to our department].

Below are students supervised by me. The contents below concern only me and these listed members. Other members in the group are found in the department web page above.

Our laboratory (Room: B9-210) always welcomes a visit of students (not only B3 but also all young students) with interests to our research or to physics subject in the undergraduate lecture course (e.g. quantum mechanics, electrodynamics, statistical mechanics, solid state physics) and its application to material science. Please free to contact us!


Master’s Course Students

Keito Kasebayashi (M1)

His Research Topics:

Theoretical study for Kondo and heavy fermion physics in A-site ordered perovskite oxides using advanced an-initio and quantum many-body method (e.g. dynamical mean field theory). He is also studying the mechanism of the valence transition in this material class.

His Research Achievements:

The 11th New Generation in Strongly Correlated Electron Systems, 10 June 2021, Online [Poster Presentation]
Kondo physics in A-site ordered perovskite CaCu3Ir4O12 and CaCu3Ru4O12

JPS march meeting, 3-12 March 2021, Online [Poster Presentation]
Kondo physics in A-site ordered perovskite CaCu3Ir4O12 and CaCu3Ru4O12


Keisuke Higashi (M1)

His Research Topics:

Theoretical modeling of core-level x-ray spectroscopy in strongly correlated electron systems, mainly 3d, 4d transition metal oxides. One of his goal is to understand the electronic structure in correlated superconductors by high precision analysis of modern spectroscopies (e.g. RIXS) using many-body quantum theory.

His Research Achievements:

International Conference on X-ray Absorption Fine Structure 2021, 11-13 July 2021, Online [Poster Presentation]
Core-level x-ray spectroscopy of infinite-layer nickelate: LDA+DMFT study
He won the 1st Poster Awards in this conference

JPS march meeting, 3-12 March 2021, Online [Poster Presentation]
Core-level x-ray spectroscopy of infinite-layer nickelate: LDA+DMFT study

Core-level x-ray spectroscopy of infinite-layer nickelate: LDA+DMFT study [Publication]
Keisuke Higashi, Mathias Winder, Jan Kuneš, and Atsushi Hariki
Physical Review X ***, *** (2021) [Link] [arXiv]


Undergraduate Students

Yoshihiro Takahashi (B4)

His Research Topics:

Development of new computational method for modeling resonant inelastic x-ray scattering (RIXS) in strongly correlated materials such as 3d transition metal oxides. He has so far simulated RIXS in some Fe and Ni compounds using quantum many-body method combined with density functional theory.

His Research Achievements:

Tatsuya Yamaguchi (B4)

His Research Topics:

Theoretical study on strongly correlated physics in perovskite transition metal oxides by means of quantum many-body method (dynamical/static mean-field theories) and density functional theory. Current topic is to understand mechanism of metal-insulator transition in ACu3Fe4O12 series and search for its core-level x-ray spectroscopic signature in collaboration with world-wide experimentalists.

His Research Achievements: