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

Using infinite projected entangled pair states (iPEPS), exactdiagonalization, and flavor-wave theory, we show that the SU(4) Heisenbergmodel undergoes a spontaneous dimerization on the square lattice, in contrastto its SU(2) and SU(3) counterparts, which develop Neel and three-sublatticestripe-like long-range order. Since the ground state of a dimer is not asinglet for SU(4) but a 6-dimensional irrep, this leaves the door open forfurther symmetry breaking. We provide evidence that, unlike in SU(4) ladders,where dimers pair up to form singlet plaquettes, here the SU(4) symmetry isadditionally broken, leading to a gapless spectrum in spite of the brokentranslational symmetry.

Simultaneous dimerization and SU(4) symmetry breaking of 4-color fermions on the square lattice