Quantum kinetic theory of quadratic responses

M Mehraeen - Physical Review B, 2024 - APS
Recent studies have revealed a general procedure for incorporating disorder into the
semiclassical model of carrier transport, whereby the predictions of quantum linear response …

Nonlinear transport theory at the order of quantum metric

ZH Gong, ZZ Du, HP Sun, HZ Lu, XC Xie - arXiv preprint arXiv:2410.04995, 2024 - arxiv.org
Quantum metric, a probe to spacetime of the Hilbert space, has been found measurable in
the nonlinear electronic transport and attracted tremendous interest. We show that the …

[HTML][HTML] Planar Hall plateau in magnetic Weyl semimetals

L Li, C Cui, RW Zhang, ZM Yu, Y Yao - Science Bulletin, 2025 - Elsevier
Despite the rapid progress in the study of planar Hall effect (PHE) in recent years, all the
previous works only showed that the PHE is connected to local geometric quantities, such as …

Quantum Geometry in Quantum Materials

J Yu, BA Bernevig, R Queiroz, E Rossi, P Törmä… - arXiv preprint arXiv …, 2024 - arxiv.org
Quantum geometry, characterized by the quantum geometric tensor, is pivotal in diverse
physical phenomena in quantum materials. In condensed matter systems, quantum …

Nonlinear Hall effects with an exceptional ring

F Qin, R Shen, CH Lee - arXiv preprint arXiv:2411.06509, 2024 - arxiv.org
In non-Hermitian band structures, exceptional points generically form gapless lines or loops
that give rise to extensively many defective eigenstates. In this work, we investigate how they …

Quantum geometric superfluid weight in multiband superconductors: A microscopic interpretation

YJ Hu, W Huang - arXiv preprint arXiv:2409.12254, 2024 - arxiv.org
Even in non-interacting limit, electrons on different Bloch bands of a multiband system do not
move as if they are oblivious to the presence of one another. Instead, they move in concert …

Magnetic-resonance-induced nonlinear current response in magnetic Weyl semimetals

R Mei, CX Liu - arXiv preprint arXiv:2410.19124, 2024 - arxiv.org
In this work, we propose a geometric nonlinear current response induced by magnetic
resonance in magnetic Weyl semimetals. This phenomenon is in analog to the quantized …