102 citations · 1.4k across the 61 of their papers we have counts for
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Blocking particle dynamics in diamond chain with spatially increasing flux
Tomonari Mizoguchi, Yoshihito Kuno, Yasuhiro Hatsugai
Spatial non-uniformity in tight-binding models serves as a source of rich phenomena. In this paper, we study a diamond-chain tight-binding model with a spatially-modulated magnetic…
Square-root topological phase with time-reversal and particle-hole symmetry
Tsuneya Yoshida, Tomonari Mizoguchi, Yoshihito Kuno +1
Square-root topological phases have been discussed mainly for systems with chiral symmetry. In this paper, we analyze the topology of the squared Hamiltonian for systems preserving…
Flat band, spin-1 Dirac cone, and Hofstadter diagram in the fermionic square kagome model
Tomonari Mizoguchi, Yoshihito Kuno, Yasuhiro Hatsugai
We study characteristic band structures of the fermions on a square kagome lattice, one of the two-dimensional lattices hosting a corner-sharing network of triangles. We show that…
Detecting Bulk Topology of Quadrupolar Phase from Quench Dynamics
Tomonari Mizoguchi, Yoshihito Kuno, Yasuhiro Hatsugai
Direct measurement of a bulk topological observable in topological phase of matter has been a long-standing issue. Recently, detection of bulk topology through quench dynamics has…
Square-root higher-order topological insulator on a decorated honeycomb lattice
Tomonari Mizoguchi, Yoshihito Kuno, Yasuhiro Hatsugai
Square-root topological insulators are recently-proposed intriguing topological insulators, where the topologically nontrivial nature of Bloch wave functions is inherited from the…