大质量膨胀的临界指数
Critical exponents from large mass expansion
摘要:
我们进行估计的临界指数,通过大的质量展开下的关键帮助下的德尔塔扩展。本文针对高温下的三维伊辛模型,以无偏和独立的方式估计了标度指数修正系数ω、nu、eta和gamma。结果在最高25阶展开下读取,Ω =0.8002,nu=0.6295,eta=0.0369和gamma=1.2357。还进行了ω =0.84(4)的估计,并证明与最近文献的总结一致。
英文摘要:
We perform estimation of critical exponents via large mass expansion under crucial help of delta-expansion. We address to the three dimensional Ising model at high temperature and estimate omega, the correction-to-scaling exponent, nu, eta and gamma in unbiased and self-contained manner. The results read at the highest 25th order expansion omega=0.8002, nu=0.6295, eta=0.0369 and gamma=1.2357. Estimation biased by omega=0.84(4) is also performed and proved to be in agreement with the summary of recent literatures.
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