Weak-value amplification forWeyl-point separation in momentum space
Mesoscale and Nanoscale Physics
2018-11-14 v1 Optics
Abstract
The existence of Weyl nodes in the momentum space is a hallmark of a Weyl semimetal (WSM). A WSM can be confirmed by observing its Fermi arcs with separated Weyl nodes. In this paper, we study the spin- orbit interaction of light on the surface of WSM in the limit that the thickness is ultra-thin and the incident surface does not support Fermi arc. Our results show that the spin-dependent splitting induced by the spin-orbit interaction is related to the separation of Weyl nodes. By proposing an amplification technique called weak measurements, the distance of the nodes can be precisely determined. This system may have application in characterizing other parameters of WSM.
Keywords
Cite
@article{arxiv.1802.06884,
title = {Weak-value amplification forWeyl-point separation in momentum space},
author = {Shizhen Chen and Chengquan Mi and Weijie Wu and Wenshuai Zhang and Hailu Luo and Shuangchun Wen},
journal= {arXiv preprint arXiv:1802.06884},
year = {2018}
}
Comments
8 pages, 8 figures