English

Universal scaling of quantum state transport in one-dimensional topological chain under nonadiabatic dynamics

Quantum Physics 2024-06-27 v1 Statistical Mechanics

Abstract

When a system is driven across a continuous phase transition, the density of topological defects demonstrates a power-law scaling behavior versus the quenching rate, as predicted by Kibble-Zurek mechanism. In this study, we generalized this idea and address the scaling of quantum state transport in a one-dimensional topological system subject to a linear drive through its topological quantum phase transition point. We illustrate the power-law dependencies of the quantum state's transport distance, width, and peak magnitude on the driving velocity. Crucially, the power-law exponents are distinct for the edge state and bulk state. Our results offer a novel perspective on quantum state transfer and enriches the field of Kibble-Zurek behaviors and nonadiabatic quantum dynamics.

Keywords

Cite

@article{arxiv.2406.18016,
  title  = {Universal scaling of quantum state transport in one-dimensional topological chain under nonadiabatic dynamics},
  author = {Lingzi Huang and Menghua Deng and Chen Sun and Fuxiang Li},
  journal= {arXiv preprint arXiv:2406.18016},
  year   = {2024}
}

Comments

10 pages, 8 figures; version accepted by PRB