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@ARTICLE{Ferrando:639298,
author = {Ferrando, Gwenaël and Lamers, Jules and Levkovich-Maslyuk,
Fedor and Serban, Didina},
title = {{B}ethe {A}nsatz inside {C}alogero-{S}utherland models},
journal = {SciPost physics},
volume = {18},
number = {1},
issn = {2542-4653},
address = {Amsterdam},
publisher = {SciPost Foundation},
reportid = {PUBDB-2025-04399, arXiv:2308.16865. DESY-24-142},
pages = {035},
year = {2025},
note = {SciPost Phys. 18, 035 (2025). v1: 42 pages, 3 figures. v2:
minor improvements, 44 pages, 4 figures. v3: minor
improvements, published version, 44 pages, 4 figures},
abstract = {We study the trigonometric quantum
spin-Calogero–Sutherland model, and the Haldane–Shastry
spin chain as a special case, using a Bethe-Ansatz analysis.
We harness the model's Yangian symmetry to import the
standard tools of integrability for Heisenberg spin chains
into the world of integrable long-range models with spins.
From the transfer matrix with a diagonal twist we construct
Heisenberg-style symmetries (Bethe algebra) that refine the
usual hierarchy of commuting Hamiltonians (quantum
determinant) of the spin-Calogero–Sutherland model. We
compute the first few of these new conserved charges
explicitly, and diagonalise them by Bethe Ansatz inside each
irreducible Yangian representation. This yields a new
eigenbasis for the spin-Calogero–Sutherland model that
generalises the Yangian Gelfand–Tsetlin basis of
Takemura–Uglov. The Bethe-Ansatz analysis involves
non-generic values of the inhomogeneities. Our review of the
inhomogeneous Heisenberg XXX chain, with special attention
to how the Bethe Ansatz works in the presence of fusion, may
be of independent interest.},
keywords = {spin: chain (INSPIRE) / symmetry: Yangian (INSPIRE) /
charge: conservation law (INSPIRE) / Bethe ansatz (INSPIRE)
/ integrability (INSPIRE) / algebra (INSPIRE) / transfer
matrix (INSPIRE) / twist (INSPIRE) / fusion (INSPIRE) /
Calogero-Sutherland model (INSPIRE)},
cin = {T},
ddc = {530},
cid = {I:(DE-H253)T-20120731},
pnm = {611 - Fundamental Particles and Forces (POF4-611) /
BrokenSymmetries - Exact Results from Broken Symmetries
(101044226)},
pid = {G:(DE-HGF)POF4-611 / G:(EU-Grant)101044226},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
typ = {PUB:(DE-HGF)16},
eprint = {2308.16865},
howpublished = {arXiv:2308.16865},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2308.16865;\%\%$},
doi = {10.21468/SciPostPhys.18.1.035},
url = {https://bib-pubdb1.desy.de/record/639298},
}