Analysis of ising model critical exponents from high temperature series expansion

摘要: High temperature series expansion for the critical exponents of Ising model are reanalysed using a modified ratio method. The analysis shows that minor modification method yields all lattices value, exponent γ in three dimensions, close to 1.245, therefore lower than quoted value 1.250, and much closer renormalization group (R.G.) 1.241. is analysed two ways : one estimated directly while other Tc, calculated first. With these new values α recalculated found be very R.G. 0.110. ν not (0.638) still problem hyperscaling, disagreement with (0.630).