346 citations · 1.1k across the 37 of their papers we have counts for
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Quantum geometry in correlated electron phases: from flat band to dispersive band
Taisei Kitamura, Akito Daido, Youichi Yanase
Quantum geometry, describing the geometric properties of the Bloch wave function in momentum space, has recently been recognized as a fundamental concept in condensed matter physic…
Magnetic phase transitions driven by quantum geometry
Chang-geun Oh, Taisei Kitamura, Akito Daido +2
We explore how the quantum geometric properties of the Bloch wave function, characterized by the Hilbert-Schmidt quantum distance, impact magnetic phases in solid-state systems. To…
Quantum geometric ferromagnetism by singular saddle point
Taisei Kitamura, Hiroki Nakai, Akito Daido +1
We propose ferromagnetism that occurs in electrons at a saddle point with band touching, which we call the singular saddle point. At the singular saddle point, the divergent quantu…
Thermodynamic electric quadrupole moments of nematic phases from first-principles calculation
Taisei Kitamura, Jun Ishizuka, Akito Daido +1
The electronic nematic phase emerging with spontaneous rotation symmetry breaking is a central issue of modern condensed matter physics. In particular, various nematic phases in ir…
Theory of spin magnetic quadrupole moment and temperature-gradient-induced magnetization
Atsuo Shitade, Akito Daido, Youichi Yanase
We revisit a quantum-mechanical formula of the spin magnetic quadrupole moment (MQM) in periodic crystals. Two previous attempts were inconsistent with each other; one is gauge dep…
Efficient method to compute -indices with glide symmetry and applications to Möbius materials, and
Tsuneya Yoshida, Akito Daido, Norio Kawakami +1
We propose an efficient method to numerically evaluate -indices of Möbius/hourglass topological phases with glide symmetry. Our method directly provides $\mathbb{Z}_4…
Fate of Majorana modes in / superlattices -a test bed for reduction of topological classification-
Tsuneya Yoshida, Akito Daido, Youichi Yanase +1
In this paper, we propose superlattice systems as a test bed for the reduction of topological classification in free fermions. We find that th…