Physics – Condensed Matter
Scientific paper
1999-10-07
J. Phys.: Condens. Matter 11 (1999) L557-L562
Physics
Condensed Matter
LaTeX, 8 pp. incl. 1 figure
Scientific paper
10.1088/0953-8984/11/50/101
We study a system of one-dimensional t-J models coupled to a ladder system. A
special choice of the interaction between neighbouring rungs leads to an
integrable model with supersymmetry, which is broken by the presence of rung
interactions. We analyze the spectrum of low-lying excitations and ground state
phase diagram at zero temperature.
Frahm Holger
Kundu Anjan
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