Self-conjugate representation SU(3) chains

It was recently argued that SU(3) chains in the p-box symmetric irreducible representation (irrep) exhibit a "Haldane gap" when p is a multiple of 3 and are otherwise gapless [Nucl. Phys. B 924, 508 (2017)]. We extend this argument to the self-conjugate irreps of SU(3) with p columns of length 2 and p columns of length 1 in the Young tableau (p = 1 corresponding to the adjoint irrep), arguing that they are always gapped but have spontaneously broken parity symmetry for p odd but not even.


Published in:
Physical Review B, 100, 11, 115114
Year:
Sep 09 2019
Publisher:
College Pk, AMER PHYSICAL SOC
ISSN:
2469-9950
2469-9969
Keywords:
Laboratories:




 Record created 2019-09-26, last modified 2020-10-24


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