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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Using an adaptation of Schwinger boson mean field theory (SBMFT) fornonuniform systems, we study the nature of low-energy spin excitations on thesquare and Bethe lattice at their percolation threshold. The optimal SBMFTparameters are interpreted as on-site potentials and pairing amplitudes, whichenables an explanation of why emergent local moments develop in this system ondilution [L. Wang and A. W. Sandvik, Phys. Rev. Lett. 97, 117204 (2006); H.J.Changlani et al., ibid 111, 157201 (2013)] and why the corresponding singleparticle frequencies are driven to anomalously low values. We discuss how ourmean field calculations suggest the strong link between the presence ofsublattice imbalance and long range antiferromagnetic order, and why linearspin wave theory is inadequate for capturing this relation. Within the SBMFTframework, we also extract an energy scale for the interaction between emergentmoments, which show qualitative agreement with many-body calculations.

Schwinger boson mean field perspective on emergent spins in diluted Heisenberg antiferromagnets