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

Chiral Haldane phases are examples of one-dimensional topological states ofmatter which are protected by projective SU($N$) group (or its subgroup$\mathbb{Z}_N \times \mathbb{Z}_N$) with $N>2$. The unique feature of thesesymmetry protected topological (SPT) phases is that they are accompanied byinversion-symmetry breaking and the emergence of different left and right edgestates which transform, for instance, respectively in the fundamental($\boldsymbol{N}$) and anti-fundamental ($\overline{\boldsymbol{N}}$)representations of SU($N$). We show, by means of complementary analytical andnumerical approaches, that these chiral SPT phases as well as the non-chiralones are realized as the ground states of a generalized two-leg SU($N$) spinladder in which the spins in the first chain transform in $\boldsymbol{N}$ andthe second in $\overline{\boldsymbol{N}}$. In particular, we map out the phasediagram for $N=3$ and $4$ to show that {\em all} the possiblesymmetry-protected topological phases with projective SU($N$)-symmetry appearin this simple ladder model.

Symmetry-protected topological phases in two-leg SU(N) spin ladder with unequal spins