dorsal/arxiv
View SchemaLight-induced Magnetization by Quantum Geometry
| Authors | Hiroki Yoshida, Takehito Yokoyama |
|---|---|
| Categories | |
| ArXiv ID | 2601.09637vv1 |
| URL | https://arxiv.org/abs/2601.09637 |
| License | http://creativecommons.org/licenses/by/4.0/ |
Abstract
We propose a mechanism for the inverse Faraday and the inverse Cotton--Mouton effects arising from quantum geometry, characterized by the quantum metric quadrupole and the weighted quantum metric. Within a semiclassical framework based on the Boltzmann transport theory, we establish a general formalism describing light-induced magnetization in electronic systems as a second-order response to the electric field of light. Using continuum and tight-binding models, we discuss the symmetry constraints on these effects and estimate the magnitudes of the resulting magnetizations. Our results highlight a direct manifestation of quantum-geometric quantities in nonlinear magneto-optical responses and suggest a viable pathway for experimental detection.
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"abstract": "We propose a mechanism for the inverse Faraday and the inverse Cotton--Mouton effects arising from quantum geometry, characterized by the quantum metric quadrupole and the weighted quantum metric. Within a semiclassical framework based on the Boltzmann transport theory, we establish a general formalism describing light-induced magnetization in electronic systems as a second-order response to the electric field of light. Using continuum and tight-binding models, we discuss the symmetry constraints on these effects and estimate the magnitudes of the resulting magnetizations. Our results highlight a direct manifestation of quantum-geometric quantities in nonlinear magneto-optical responses and suggest a viable pathway for experimental detection.",
"arxiv_id": "2601.09637",
"authors": [
"Hiroki Yoshida",
"Takehito Yokoyama"
],
"categories": [
"cond-mat.mtrl-sci",
"cond-mat.mes-hall",
"physics.optics",
"quant-ph"
],
"license": "http://creativecommons.org/licenses/by/4.0/",
"title": "Light-induced Magnetization by Quantum Geometry",
"url": "https://arxiv.org/abs/2601.09637",
"version": "v1"
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