Physics – Condensed Matter
Scientific paper
1995-10-20
Physics
Condensed Matter
text 7 pages Plain TeX, 1 figure on request
Scientific paper
We investigate the long-distance asymptotic behavior of the dimer correlations in the spin-1/2 alternating $XY$chain both at T=0 and at sufficiently low-temperatures. The correlations consist of the dimer long-range order part and the exponentially decaying one. Although the dimer long-range order takes the different values depending on the choice of the spin pairs, the behavior in the decaying term is same irrespective of the choice of spin pairs.
Okamoto Kiyomi
Saika Yohei
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