713 citations · 6.9k across the 81 of their papers we have counts for
7 papers · 1 filter
Shift current from electromagnon excitations in multiferroics
Takahiro Morimoto, Naoto Nagaosa
Electromagnon is the spin wave in multiferroic materials and is known to accompany electric polarization due to the cross correlation between the charge and spin. Here, we theoreti…
Nonlinear optical effects in inversion-symmetry-breaking superconductors
Tianrui Xu, Takahiro Morimoto, Joel E. Moore
We study nonlinear optical responses in superconducting systems with inversion () symmetry-breaking order parameters. We first show that any superconducting system wit…
Nonreciprocal Landau-Zener tunneling
Sota Kitamura, Naoto Nagaosa, Takahiro Morimoto
Application of strong dc electric field to an insulator leads to quantum tunneling of electrons from the valence band to the conduction band, which is a famous nonlinear response k…
Biexciton in one-dimensional Mott insulators
T. Miyamoto, T. Kakizaki, T. Terashige +10
Mott insulators sometimes show dramatic changes in their electronic states after photoirradiation, as indicated by photoinduced Mott-insulator-to-metal transition. In the photoexci…
Difference frequency generation in topological semimetals
Fernando de Juan, Yang Zhang, Takahiro Morimoto +3
When two lasers are applied to a non-centrosymmetric material, light can be generated at the difference of the incoming frequencies , a phenomenon known as difference frequency…
Quantum phase transitions beyond Landau-Ginzburg theory in one-dimensional space revisited
Christopher Mudry, Akira Furusaki, Takahiro Morimoto +1
The phase diagram of the quantum spin-1/2 antiferromagnetic - XXZ chain was obtained by Haldane using bosonization techniques. It supports three distinct ph…