133 citations · 600 across the 29 of their papers we have counts for
14 papers · 1 filter
Many-body multipole index and bulk-boundary correspondence
Yasuhiro Tada, Masaki Oshikawa
We propose new dipole and quadrupole indices for interacting insulators with point group symmetries. The proposed indices are defined in terms of many-body quantum multipole operat…
Gapless symmetry-protected topological phase of quantum antiferromagnets on anisotropic triangular strip
Yuichiro Hidaka, Shunsuke C. Furuya, Atsushi Ueda +1
We study a three-leg spin-1/2 ladder with geometrically frustrated interleg interactions. We call this model an anisotropic triangular-strip (ATS) model. We numerically and field-t…
Lieb-Schultz-Mattis theorem in higher dimensions from approximate magnetic translation symmetry
Yasuhiro Tada
We prove the Lieb-Schultz-Mattis (LSM) theorem on the energy spectrum of a general two or three-dimensional quantum many-body system with the U(1) particle number conservation and…
Robust orbital diamagnetism of correlated Dirac fermions in chiral Ising universality class
Yasuhiro Tada
We study orbital diamagnetism at zero temperature in -dimensional Dirac fermions with a short-range interaction which exhibits a quantum phase transition to a charge density…
Quantum criticality of magnetic catalysis in two-dimensional correlated Dirac fermions
Yasuhiro Tada
We study quantum criticality of the magnetic field induced charge density wave (CDW) order in correlated spinless Dirac fermions on the -flux square lattice at zero temperature…
Cyclotron resonance in Kondo insulator
Yasuhiro Tada
Motivated by the recent experimental observations of quantum oscillations in the Kondo insulators SmB and YbB, we study magneto-optical conductivity of Kondo insulators.…