The quantum kinetic framework provides a versatile method for investigating the dynamical
optical and transport currents of crystalline solids. In this paper, starting from the density …

We present a systematic study of the nonlinear thermal Hall responses in bosonic systems
using the quantum kinetic theory framework. We demonstrate the existence of an intrinsic …

There has been considerable interest in the nonlinear optical phenomenon in recent years,
particularly in two-dimensional materials. Here, we study the optical polarization quantities …

We establish a comprehensive theoretical framework for systems subjected to a static
uniform temperature gradient, employing the nonequilibrium Keldysh-Dyson formalism. This …

We propose a theory for thermal Hall transport mediated by magnons to address the impact
of their damping resulting from magnon-magnon interactions in insulating magnets. This …

Nonlinear transport phenomena offer an exciting probe into the topology and band geometry
of the system. Here, we investigate the intrinsic third-order nonlinear responses …

Efficient thermal management is important for both performance and efficiency
improvements of thermal devices. For designing reasonable materials and structures of such …

Electric field-induced modulation of the optical properties is crucial for amplitude and phase
modulators used in photonic devices. Here, we present a comprehensive study of the band …