J. Phys. Soc. Jpn. 66 (1997) pp. 988-994 |Next Article| |Table of Contents|
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(Received September 17, 1996)
Thermodynamic quantities of solvable models such as one–dimensional Heisenberg model can be obtained through the finite temperature Baxter formula. For the low–temperature expansions, the estimate of the finite size corrections by use of the Euler–Maclaurin formula is essential. There has been a question on the convergence of such calculations. In this paper, choosing the XX model as a simple example, we show explicitly that the Euler–Maclaurin formula reproduces the correct low–temperature expansion of the free energy. ©1997 The Physical Society of Japan
KEYWORDS:
finite temperature Baxter formula,
Euler–Maclaurin formula, low–temperature expansions, finite size corrections,
Heisenberg model, 6–vertex model
URL:
http://jpsj.ipap.jp/link?JPSJ/66/988/
DOI: 10.1143/JPSJ.66.988