61 citations · 113 across the 9 of their papers we have counts for
9 papers
Probing three-state Potts nematic fluctuations by ultrasound attenuation
Kazuhiro Kimura, Manfred Sigrist, Norio Kawakami
Motivated by recent studies of three-state Potts nematic states in magic-angle twisted bilayer graphene and doped-BiSe, we analyze the impact of critical nematic fluctuatio…
Surface exceptional points in a topological Kondo insulator
Robert Peters, Kazuhiro Kimura, Yoshihiro Michishita +2
Correlated materials have appeared as an arena to study non-Hermitian effects as typically exemplified by the emergence of exceptional points. We show here that topological Kondo i…
Reflection-Symmetry Protected Antiferromagnetic Topological Insulator in Three-Dimensional Heavy-Fermion Systems
Kazuhiro Kimura, Tsuneya Yoshida, Norio Kawakami
We study the topological properties of an antiferromagnetic phase with reflection symmetry in three-dimensional heavy-fermion systems. We here propose a reflection-symmetric topolo…
Chiral-symmetry protected exceptional torus in correlated nodal-line semi-metals
Kazuhiro Kimura, Tsuneya Yoshida, Norio Kawakami
We analyze a diamond-lattice Hubbard model with the spatially modulated Hubbard interaction. Our dynamical mean-field analysis with special emphasis on non-Hermitian properties elu…
Topological properties of magnetically ordered heavy-fermion systems in the presence of mirror symmetry
Kazuhiro Kimura, Tsuneya Yoshida, Norio Kawakami
We explore topological states with magnetic order in heavy-fermion systems by taking account of a mirror symmetry.Although without spatial symmetry, there is no topological phase i…
q-differential operator representation of the quantum superalgebra Uq(sl(M+1|N+1))
Kazuhiro Kimura
A representation of the quantum superalgebra Uq(sl(M+1|N+1)) is constructed based on the q-differential operators acting on the coherent states parameterized by coordinates. These…