The thermodynamical limit of general gl(N) spin chains:: the vacuum state and densities

被引:4
|
作者
Crampe, N.
Frappat, L.
Ragoucy, E.
机构
[1] Sch Adv Int Studies, I-34014 Trieste, Italy
[2] Ist Nazl Fis Nucl, Sez Trieste, Trieste, Italy
[3] Univ Savoie, Lab Annecy Le Vieux Phys Theor, CNRS, UMR 5108, F-74941 Annecy Le Vieux, France
关键词
algebraic structures of integrable models; symmetries of integrable models; thermodynamic Bethe ansatz;
D O I
10.1088/1742-5468/2007/03/P03014
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
We study the vacuum state of spin chains where each site carries an arbitrary representation. We prove that the string hypothesis usually used to solve the Bethe ansatz equations is valid for representations characterized by rectangular Young tableaux. In these cases, we obtain the density of the centre of the strings for the vacuum. We work through different examples and, in particular, that for spin chains with a periodic array of impurities.
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页数:29
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