2026-06-28T04:54:32Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/446772023-08-25T14:54:20Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Basu Mallick, B.
author
Finkel Morgenstern, Federico
author
González López, Artemio
2023-06-20T03:55:32Z
2023-06-20T03:55:32Z
2009-05-11
0550-3213
10.1016/j.nuclphysb.2008.11.006
https://hdl.handle.net/20.500.14352/44677
http://dx.doi.org/10.1016/j.nuclphysb.2008.11.006
http://www.sciencedirect.comhttp://arxiv.org/pdf/0809.4234v1
We derive the spectra of the D-N-type Calogero (rational) su(m) spin model, including the degeneracy factors of all energy levels. By taking the strong coupling limit of this model, in which its spin and dynamical degrees of freedom decouple, we compute the exact partition function of the su(m) Polychronakos-Frahm spin chain of D-N type. In particular, we show that this partition function cannot be obtained as a limiting case of its BCN counterpart. With the help of the partition function we study several statistical properties of the chain's spectrum, such as the density of energy levels and the distribution of spacings between consecutive levels.
eng
Atribución 3.0 España
Exactly solvable D-N-type quantum spin models with long-range interaction
journal article
URL
https://docta.ucm.es/bitstreams/48109f8f-824e-44db-880d-135470e86c4e/download
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4d73348eb2ba40aedfed95cef72c7665
469665
application/pdf
Finkel08.pdf