Hall conductance of two-band systems in a quantized field
Mesoscale and Nanoscale Physics
2016-11-28 v1 Other Condensed Matter
Quantum Physics
Abstract
Kubo formula gives a linear response of a quantum system to external fields, which are classical and weak with respect to the energy of the system. In this work, we take the quantum nature of the external field into account, and define a Hall conductance to characterize the linear response of a two-band system to the quantized field. The theory is then applied to topological insulators. Comparisons with the traditional Hall conductance are presented and discussed.
Keywords
Cite
@article{arxiv.1512.09376,
title = {Hall conductance of two-band systems in a quantized field},
author = {Z. C. Shi and H. Z. Shen and X. X. Yi},
journal= {arXiv preprint arXiv:1512.09376},
year = {2016}
}
Comments
6 pages, 7 figures