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

Kitaev's compass model on the honeycomb lattice realizes a spin liquid whoseemergent excitations are dispersive Majorana fermions and static Z_2 gaugefluxes. We discuss the proper selection of physical states for finite-sizesimulations in the Majorana representation, based on a recent paper byPedrocchi, Chesi, and Loss [Phys. Rev. B 84, 165414 (2011)]. Certain physicalobservables acquire large finite-size effects, in particular if the groundstate is not fermion-free, which we prove to generally apply to the system inthe gapless phase and with periodic boundary conditions. To illustrate ourfindings, we compute the static and dynamic spin susceptibilities forfinite-size systems. Specifically, we consider random-bond disorder (whichpreserves the solubility of the model), calculate the distribution of localflux gaps, and extract the NMR lineshape. We also predict a transition to arandom-flux state with increasing disorder.

Physical states and finite-size effects in Kitaev's honeycomb model: Bond disorder, spin excitations, and NMR lineshape