6 citations · 10 across the 9 of their papers we have counts for
9 papers
Emergent induction in magnetic Weyl semimetals
Takahiro Anan, Takahiro Morimoto
We theoretically study emergent electromagnetic responses in Weyl semimetals. Focusing on magnetic Weyl semimetals, we develop a general theory of emergent induction driven by magn…
Quantum-geometric shift of quasiequilibrium: Origin of nonreciprocal current driven by quantum-metric dipole
Sota Kitamura, Takahiro Anan, Takahiro Morimoto
We study nonlinear DC electric transport of quantum-metric origin by combining adiabatic perturbation theory with the nonequilibrium Green function approach. The adiabatic ansatz p…
Spinon shift current in a noncentrosymmetric quantum spin chain
Ryosuke Yamashita, Shintaro Takayoshi, Takahiro Morimoto
We theoretically study direct current generation in a quantum spin chain induced by spinon excitations by light irradiation. We consider a one-dimensional (1D) antiferromag…
Nonreciprocal current induced by dissipation in time-reversal symmetric systems
Takahiro Anan, Sota Kitamura, Takahiro Morimoto
We study nonreciprocal current response in noncentrosymmetric crystals under time-reversal symmetry. We reveal that the nonreciprocal current appears in a dissipative system throug…
Formulation of the orbital magnetic moment in multiorbital tight-binding models: Application to the inverse Faraday effect
Kosuke Tazuke, Takahiro Morimoto, Sota Kitamura
We establish a theoretical formulation of the orbital magnetic moment in multiorbital tight-binding models, focusing on the role of the electric dipole. We demonstrate that the tot…
Quantum Optical Spanner: Twisting Superconductors with Vortex Beam via Higgs Mode
Daemo Kang, Sota Kitamura, Takahiro Morimoto
Light carrying orbital angular momentum (OAM)--known as vortex beams--has broadened the scope of understanding and applications of light's angular momentum. Optical tweezers using…
Controllable photocurrent generation in Dirac systems with two frequency drives
Yuya Ikeda, Sota Kitamura, Takahiro Morimoto
We study the bulk photovoltaic effect (BPVE) in Dirac and Weyl semimetals under two-frequency light irradiation. We show that the BPVE emerges for centrosymmetric Dirac and Weyl se…
Brillouin zone folding method for quasiperiodic superconductivity in multilayer systems: application to electronic structure and optical responses
Mao Yoshii, Sota Kitamura, Takahiro Morimoto
We construct an efficient momentum space approach to the superconductivity in quasiperiodic multilayer systems. To this end, we extend the Brillouin zone (BZ) folding method to the…
Time-dependent Gutzwiller simulation of Floquet topological superconductivity
Takahiro Anan, Takahiro Morimoto, Sota Kitamura
Periodically driven systems provide a novel route to control the topology of quantum materials. In particular, Floquet theory allows an effective band description of periodically-d…