8 citations · 18 across the 12 of their papers we have counts for
12 papers
Superconductivity-enhanced phonon angular momentum
Natsuki Okada, Philipp Werner, Shintaro Hoshino
We theoretically investigate the properties of phonon angular momentum in the superconducting state, using fulleride compounds in an external magnetic field as a model system. The…
Spherical-tensor description of the Jahn--Teller--Hubbard molecule and local electron--phonon entanglement
Koichiro Takahashi, Shuichiro Ebata, Naotaka Yoshinaga +1
We investigate the localized-electron character of the Mott-insulating phase in AC using a single-site multiorbital electron model coupled to anisotropic molecular vibra…
Semiclassical representation of the Hubbard model
Yuki Yamasaki, Hidemaro Suwa, Cristian D. Batista +1
By revisiting the path-integral formulation of the Hubbard model, we propose a theoretical approach based on a semiclassical approximation employing an unconventional coherent-stat…
Designing XY and Dzyaloshinskii--Moriya couplings in Majorana Cooper pair boxes
Manato Teranishi, Shintaro Hoshino, Ai Yamakage
We theoretically study how to design spin couplings in networks of Majorana Cooper pair boxes (MCBs) connected by multiple normal-metal leads. The inter-box interaction is generate…
Electron chirality and hydrodynamic helicity: Analysis in the atomic limit
Tatsuya Miki, Yuta Kakinuma, Masato Senami +4
Electron chirality has been proposed as a microscopic quantity that characterizes electronic handedness, yet its underlying control parameter has not been clearly identified. Furth…
Nonlinear planar Hall effect from superconducting vortex motion
Mio Hashimoto, Takako Konoike, Tomoki Kobayashi +6
We report the nonreciprocal charge transport along the longitudinal and transverse directions in the vortex flow regime of FeSe superconducting films. Clear nonreciprocal signals u…
Symmetry-breaking perturbations in the Jahn-Teller-Hubbard model
Natsuki Okada, Tatsuya Miki, Yusuke Nomura +2
We study the effect of symmetry-breaking perturbations in the multiorbital Hubbard model coupled to anisotropic Jahn-Teller phonons, which is relevant for the description of fuller…
Weak coupling approach to magnetic and orbital susceptibilities for superconducting states in multiorbital electron-phonon coupled model
Natsuki Okada, Tatsuya Miki, Shintaro Hoshino
Alkali-doped fullerides are molecular-based superconductors with multiple active orbitals. In this paper, using the Eliashberg theory with the retardation effect of Jahn-Teller pho…
Quantification of electronic asymmetry: chirality and axiality in solids
Tatsuya Miki, Hiroaki Ikeda, Michi-To Suzuki +1
Chiral and axial materials offer platforms for intriguing phenomena, such as cross-correlated responses and chirality-induced spin selectivity. However, quantifying the properties…
Dirac bilinears in condensed matter physics: Relativistic correction for observables and conjugate electromagnetic fields
Shintaro Hoshino, Tatsuya Miki, Michi-To Suzuki +1
Inspired by recent developments in electron chirality, we reconsider some microscopic physical quantities that have been overlooked or have received little attention in condensed m…
Odd-frequency pairing of Bogoliubov quasiparticles in superconductor junction
Tatsuya Miki, Yukio Tanaka, Shun Tamura +1
We study a superconductor Josephson junction with a Bogoliubov Fermi surface, employing McMillan's Green's function technique. The low-energy degrees of freedom are described by sp…
Low-rank quantics tensor train representations of Feynman diagrams for multiorbital electron-phonon models
Hirone Ishida, Natsuki Okada, Shintaro Hoshino +1
Feynman diagrams are an essential tool for simulating strongly correlated electron systems. However, stochastic quantum Monte Carlo sampling suffers from the sign problem, particul…