Wilson 1971-1975 RG: anomalous-dimension gamma(g) modifies engineering-dimension d at fixed-point; eta_critical = 2 gamma(g*); explains universality of critical exponents.
Wilson 1971-1975 RG: anomalous-dimension gamma(g) modifies engineering-dimension d at fixed-point; eta_critical = 2 gamma(g*); explains universality of critical exponents.