dorsal/arxiv
View SchemaSkew Young diagram method in spectral decomposition of integrable lattice models
| Authors | Anatol N. Kirillov, Atsuo Kuniba, Tomoki Nakanishi |
|---|---|
| Categories | |
| ArXiv ID | q-alg/9607027 |
| URL | https://arxiv.org/abs/q-alg/9607027 |
| DOI | 10.1007/s002200050098 |
| Journal | Commun.Math.Phys. 185 (1997) 441-465 |
Abstract
The spectral decomposition of the path space of the vertex model associated to the vector representation of the quantized affine algebra $U_q(\hat{sl}_n)$ is studied. We give a one-to-one correspondence between the spin configurations and the semi-standard tableaux of skew Young diagrams. As a result we obtain a formula of the characters for the degeneracy of the spectrum in terms of skew Schur functions. We conjecture that our result describes the $sl_n$-module contents of the Yangian $Y(sl_n)$-module structures of the level 1 integrable modules of the affine Lie algebra $\hat{sl}_n$. An analogous result is obtained also for a vertex model associated to the quantized twisted affine algebra $U_q(A^{(2)}_{2n})$, where $Y(B_n)$ characters appear for the degeneracy of the spectrum. The relation to the spectrum of the Haldane-Shastry and the Polychronakos models are also discussed.
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"abstract": "The spectral decomposition of the path space of the vertex model associated\nto the vector representation of the quantized affine algebra $U_q(\\hat{sl}_n)$\nis studied. We give a one-to-one correspondence between the spin configurations\nand the semi-standard tableaux of skew Young diagrams. As a result we obtain a\nformula of the characters for the degeneracy of the spectrum in terms of skew\nSchur functions. We conjecture that our result describes the $sl_n$-module\ncontents of the Yangian $Y(sl_n)$-module structures of the level 1 integrable\nmodules of the affine Lie algebra $\\hat{sl}_n$. An analogous result is obtained\nalso for a vertex model associated to the quantized twisted affine algebra\n$U_q(A^{(2)}_{2n})$, where $Y(B_n)$ characters appear for the degeneracy of the\nspectrum. The relation to the spectrum of the Haldane-Shastry and the\nPolychronakos models are also discussed.",
"arxiv_id": "q-alg/9607027",
"authors": [
"Anatol N. Kirillov",
"Atsuo Kuniba",
"Tomoki Nakanishi"
],
"categories": [
"q-alg",
"hep-th",
"math.QA"
],
"doi": "10.1007/s002200050098",
"journal_ref": "Commun.Math.Phys. 185 (1997) 441-465",
"title": "Skew Young diagram method in spectral decomposition of integrable lattice models",
"url": "https://arxiv.org/abs/q-alg/9607027"
},
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