Dichroism from Chiral Thermoelectric Probes: Generalized Sum Rules for Orbital and Heat Magnetizations

• URL: http://arxiv.org/abs/2511.21599v2
• Date: Mon, 01 Dec 2025 08:19:22 GMT
• Title: Dichroism from Chiral Thermoelectric Probes: Generalized Sum Rules for Orbital and Heat Magnetizations
• Authors: Baptiste Bermond, Lucila Peralta Gavensky, Anaïs Defossez, Nathan Goldman,
• Abstract summary: We introduce a unified framework that relates orbital and heat magnetizations to experimentally accessible excitation spectra.<n>We derive spectral representations of magnetization densities from thermoelectric correlation functions.<n>We propose concrete implementations of thermoelectric dichroic measurements in quantum-engineered platforms.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We introduce a unified framework that relates orbital and heat magnetizations to experimentally accessible excitation spectra, through thermoelectric probes and generalized sum rules. By analyzing zero-temperature transport coefficients and applying Kramers-Kronig relations, we derive spectral representations of magnetization densities from thermoelectric correlation functions. Excitation rates under chiral thermoelectric drives then naturally emerge as direct probes of these Kubo-type correlators, placing orbital and heat magnetizations on equal footing with the topological Chern number. As a direct consequence of our formalism, we introduce a hierarchical construction that organizes orbital and heat magnetizations into distinct physical contributions accessible through sum rules, and also derive real-space markers of these magnetizations. From an experimental standpoint, we propose concrete implementations of thermoelectric dichroic measurements in quantum-engineered platforms based on modulated strain fields. These results establish thermoelectric dichroic measurements as a versatile route to access and disentangle fundamental ground-state properties.

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