Microscopic theory of photon-induced energy, momentum, and angular momentum transport in the nonequilibrium regime

Zhang, Yong-Mei; Zhu, Tao; Zhang, Zu-Quan; Wang, Jiansheng

doi:10.1103/physrevb.105.205421

Cited by 7 publications

(2 citation statements)

References 42 publications

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“…The total energy radiation is obtained by integrating the energy radiation spectrum over all frequencies. 39 Fig. 7 shows the energy radiation of the three models under different voltages.…”

Section: Far-field Radiationmentioning

confidence: 99%

Far-field thermal properties of β₁₂ borophene under an external electric field

Xie

Qian

Zhang

2023

Phys. Chem. Chem. Phys.

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Section: Far-field Radiationmentioning

confidence: 99%

Far-field thermal properties of β₁₂ borophene under an external electric field

Xie

Qian

Zhang

2023

Phys. Chem. Chem. Phys.

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“…Here the first term is interpreted to be the spin part of the contribution to angular momentum transfer, as it is independent of a choice of the coordinate origin, while the second term is interpreted as due to orbital angular momentum [157].…”

Section: Expressing Transport Quantities By Green's Functionsmentioning

confidence: 99%

Transport in electron-photon systems

et al. 2023

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We review the description and modeling of transport phenomena among the electron systems coupled via scalar or vector photons. It consists of three parts. The first part is about scalar photons, i.e., Coulomb interactions. The second part is with transverse photons described by vector potentials. The third part is on φ = 0 or temporal gauge, which is a full theory of the electrodynamics. We use the nonequilibrium Green’s function (NEGF) formalism as a basic tool to study steady-state transport. Although with local equilibrium it is equivalent to the fluctuational electrodynamics (FE), the advantage of NEGF is that it can go beyond FE due to its generality. We have given a few examples in the review, such as transfer of heat between graphene sheets driven by potential bias, emission of light by a double quantum dot, and emission of energy, momentum, and angular momentum from a graphene nanoribbon. All of these calculations are based on a generalization of the Meir—Wingreen formula commonly used in electronic transport in mesoscopic systems, with materials properties represented by photon self-energy, coupled with the Keldysh equation and the solution to the Dyson equation.

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Far-field thermal radiation of layered ferromagnetic topological materials

Zhang,

Wang

2024

Journal of Applied Physics

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High Chern number topological insulators can be obtained in a film of layered magnetic block system theoretically and experimentally. With nonzero Chern numbers, Chern insulators become valuable for fundamental topological physics and for improving next-generation electronic devices. We study energy and angular momentum radiation from layered topological insulators using the Dirac Fermion approach and by Green’s function method. We make a connection between radiation magnitude and topological phase transitions. We find that the magnetic exchange field, intra-layer coupling, and inter-layer interaction are efficient measures to modify the energy radiation of layered topological materials. Moreover, the magnetic exchange field is indispensable for emitting angular momentum due to the need for breaking time-reversal symmetry.

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Microscopic theory of photon-induced energy, momentum, and angular momentum transport in the nonequilibrium regime

Cited by 7 publications

References 42 publications

Far-field thermal properties of β₁₂ borophene under an external electric field

Far-field thermal properties of β₁₂ borophene under an external electric field

Transport in electron-photon systems

Far-field thermal radiation of layered ferromagnetic topological materials

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Microscopic theory of photon-induced energy, momentum, and angular momentum transport in the nonequilibrium regime

Cited by 7 publications

References 42 publications

Far-field thermal properties of β12 borophene under an external electric field

Far-field thermal properties of β12 borophene under an external electric field

Transport in electron-photon systems

Far-field thermal radiation of layered ferromagnetic topological materials

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Product

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Far-field thermal properties of β₁₂ borophene under an external electric field

Far-field thermal properties of β₁₂ borophene under an external electric field