Electrically induced bulk and edge excitations in the fractional quantum Hall regime
Mesoscale and Nanoscale Physics
2025-02-04 v1 Strongly Correlated Electrons
General Relativity and Quantum Cosmology
Quantum Physics
Abstract
We apply a voltage pulse to electrically excite the incompressible region of a two-dimensional electron liquid in the fractional quantum Hall state and investigate the collective excitations in both the edge and bulk via photoluminescence spectral energy shifts. Introducing an offset in the voltage pulse significantly enhances the excitation signal. Real-space and time-resolved measurements reveal the dynamics of the bulk excitations, with an estimated group velocity of approximately m/s. These bulk excitations align well with the magneto-plasmon model. Our results highlight the topological link between edge and bulk states, providing a novel approach to exploring solid-state analogs of quantum gravity.
Cite
@article{arxiv.2502.01052,
title = {Electrically induced bulk and edge excitations in the fractional quantum Hall regime},
author = {Quentin France and Yunhyeon Jeong and Akinori Kamiyama and Takaaki Mano and Ken-ichi Sasaki and Masahiro Hotta and Go Yusa},
journal= {arXiv preprint arXiv:2502.01052},
year = {2025}
}