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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We investigate how the Kitaev spin liquid state described by Majoranafermions coupled with $Z_2$ gauge fields is affected by non-Kitaev interactionswhich exist in real candidate materials of the Kitaev magnet. It is found thatthe off-diagonal exchange interaction referred to as the $\Gamma'$ termdramatically changes the Majorana band structure in the case of theantiferromagnetic Kitaev interaction, and gives rise to a topological phasetransition from a non-Abelian topological phase with the Chern number equal to$\pm 1$ to an Abelian phase with the Chern number equal to $\pm 2$, in whichthe $Z_{2}$ vortices behave as Abelian anyons. On the other hand, othernon-Kitaev interactions such as the Heisenberg interaction and the $\Gamma$term, only affect the bandwidth of the Majorana band as long as the spin liquidstate is not destabilized.

Topological phase transition to Abelian anyon phases due to off-diagonal exchange interaction in the Kitaev spin liquid state