Staggered anisotropy parameter modification of the anisotropic t - J model

T. Sedrakyan

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13 Scopus citations


The anisotropic t-J model (Uq(gl(2|1)) Perk-Schultz model) with staggered disposition of the anisotropy parameter along a chain is considered and the corresponding ladder type integrable model is constructed. This is a generalisation to spin-1 case of the staggered XXZ spin-1/2 model considered earlier. The corresponding Hamiltonian is calculated and, since it contains next to nearest neighbour interaction terms, can be written in a zig-zag form. The algebraic Bethe ansatz technique is applied and the eigenstates, along with eigenvalues of the transfer matrix of the model are found.

Original languageEnglish (US)
Pages (from-to)557-576
Number of pages20
JournalNuclear Physics B
Issue number3
StatePublished - Aug 13 2001
Externally publishedYes

Bibliographical note

Funding Information:
Work was partially supported by INTAS grant 99-1459.


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