Emergent SU(3) symmetry in a four-leg spin tube

Orignac, Edmond

doi:10.1103/PhysRevB.109.174430

Emergent SU(3) symmetry in a four-leg spin tube

Edmond Orignac
(
- ENS, Lyon, Lab. Phys.
)

Feb 19, 2024

17 pages

Published in:

Phys.Rev.B 109 (2024) 17, 174430

Published: May 1, 2024

e-Print:

2402.11927 [cond-mat.str-el]

DOI:

10.1103/PhysRevB.109.174430 (publication)

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Abstract: (APS)

We consider an antiferromagnetic four-leg spin-1/2 tube using Abelian and non-Abelian bosonization. We show that in the limit of weak interchain coupling, the most relevant interaction gives rise to an emergent

SU (3)

symmetry, broken only by marginal interactions that can be canceled by diagonal interchain couplings. We discuss the low-energy spectrum in the semiclassical limit and using a mapping to a trimerized

SU (3)

spin chain. We establish that the correlation functions of ferroquadrupolar operators can be used to reveal the emergent symmetry.

Note:

RevTex 4-2, 17 pages, 1 PDF figure

References(102)

Figures(1)

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