English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The quantized conductance plateaus and zero conductance fluctuation are thegeneral consequence of electron transport in chiral edge states of HermitianChern insulators. Here we show that the physics of electron transport throughchiral or helical edge channels becomes much richer when the non-Hermicity isallowed. In the presence of an unbalanced non-Hermicity where the chiral edgestates have finite-lifetime, the conductance of the edge channels is notquantized, but its conductance fluctuation is zero. For the balancednon-Hermicity, however, the chiral edge states have infinite-lifetime, and theconductance is quantized as in the case of Hermitian Chern insulators. Bothnon-quantized and quantized conductance plateaus of zero conductancefluctuation are robust against disorders. We present a theory that explains theorigin of the non-quantized conductance plateaus. The physics revealed hereshould also be true for the chiral and helical surface states in othertopological materials such as quantum anomalous Hall systems, Weyl semimetals,and topological superconductors.

Non-Quantized Edge Channel Conductance and Zero Conductance Fluctuation in Non-Hermitian Chern Insulators