Nonreciprocal current induced by dissipation in time-reversal symmetric systems
Mesoscale and Nanoscale Physics
2026-04-07 v1
Abstract
We study nonreciprocal current response in noncentrosymmetric crystals under time-reversal symmetry. We show that the nonreciprocal current appears in a dissipative system through interband processes. The nonreciprocal current is inversely proportional to the lifetime and has a close relationship to the geometric quantity called the shift vector. The current mechanism is suitable for minigap systems where the energy gap and relaxation strength are comparable. We present a numerical simulation of the nonreciprocal current in the one-dimensional Rice--Mele model.
Keywords
Cite
@article{arxiv.2604.04520,
title = {Nonreciprocal current induced by dissipation in time-reversal symmetric systems},
author = {Takahiro Anan and Sota Kitamura and Takahiro Morimoto},
journal= {arXiv preprint arXiv:2604.04520},
year = {2026}
}
Comments
15 pages, 3 figures