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

A spin-1/2 system with double orbital degeneracy may possess SU(4) symmetry.According to the group theory a global SU(4) singelt state can be expressed asa linear combination of all possible configurations consisting of four-siteSU(4) singlets. Following P. W. Andersion's idea for spin 1/2 system, wepropose that the ground state for the antiferromagnetic SU(4) model is SU(4)resonating valence bond (RVB) state. A short-range SU(4) RVB state is a spinand orbital liquid, and its elementary excitations has an energy gap. Weconstruct a series of solvale models which ground states are short-range SU(4)RVB states. The results can be generalized to the antiferromagnetic SU(N)models.Comment: 4 page

physical review. b, condensed matter

Generalized valence bond state and solvable models for spin-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mfrac><mml:mrow><mml:mn>1</mml:mn></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:mfrac></mml:math>systems with orbital degeneracy

Generalized valence bond state and solvable models for spin-12systems with orbital degeneracy