}(E_d=\mu_R) = \frac{\Gamma_d}{h} \, \mu_R                            \left[ f_L(\mu_R) - f_R(\mu_R)\right]                       = \frac{\Gamma_d}{h} \, \mu_R                            \left[ \frac{0}{e^{\mu_R/k_BT_L} + 0} - \frac{0}{0}\right] \ 