Quantum kinetic theory of nonlinear optical currents: Finite Fermi surface and Fermi sea contributions
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 …
optical and transport currents of crystalline solids. In this paper, starting from the density …
Intrinsic nonlinear thermal Hall transport of magnons: A quantum kinetic theory approach
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 …
using the quantum kinetic theory framework. We demonstrate the existence of an intrinsic …
Electrically tunable nonlinear Faraday ellipticity and rotation in WTe
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 …
particularly in two-dimensional materials. Here, we study the optical polarization quantities …
Keldysh theory of thermal transport in multiband Hamiltonians
We establish a comprehensive theoretical framework for systems subjected to a static
uniform temperature gradient, employing the nonequilibrium Keldysh-Dyson formalism. This …
uniform temperature gradient, employing the nonequilibrium Keldysh-Dyson formalism. This …
Thermal Hall effect incorporating magnon damping in localized spin systems
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 …
of their damping resulting from magnon-magnon interactions in insulating magnets. This …
Intrinsic Third Order Nonlinear Transport Responses
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 …
of the system. Here, we investigate the intrinsic third-order nonlinear responses …
Inverse design method of thermal devices with thermal Hall effect
Efficient thermal management is important for both performance and efficiency
improvements of thermal devices. For designing reasonable materials and structures of such …
improvements of thermal devices. For designing reasonable materials and structures of such …
Band geometry induced electro-optic effect and polarization rotation
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 …
modulators used in photonic devices. Here, we present a comprehensive study of the band …