SFQ的fairness能满足: \(|\frac{W_f(t_1, t_2)}{\phi_f} - \frac{W_m(t_1, t_2)}{\phi_m}| \leq \frac{l_f^{max}}{\phi_f} + \frac{l_m^{max}}{\phi_m}.\\\) 其证明可以参考论文[1].