3 papers
cond-mat.mes-hall2024
Problem of nonlinear conductivity within relaxation time approximation in noncentrosymmetric insulators
Ibuki Terada, Sota Kitamura, Hiroshi Watanabe +1
With the recent advancements in laser technology, there has been increasing interest in nonlinear and nonperturbative phenomena such as nonreciprocal transport, the nonlinear Hall…
cond-mat.mes-hall2024
Multi-tunneling effect of nonreciprocal Landau-Zener tunneling: Insights from DC field responses
Ibuki Terada, Sota Kitamura, Hiroshi Watanabe +1
Recent advancements in laser technology have spurred growing interest in nonlinear and nonequilibrium phenomena. Here, we investigate the geometric aspects of quantum tunneling and…
cond-mat.mes-hall2024
Unexpected linear conductivity in Landau-Zener model: limitations and improvements of the relaxation time approximation in the quantum master equation
Ibuki Terada, Sota Kitamura, Hiroshi Watanabe +1
The nonequilibrium steady states of quantum materials have many challenges. Here, we highlight issues with the relaxation time approximation (RTA) for the DC conductivity in insula…