ELPH TRANSPORT DRIVER

ELPH_TRANSPORT_DRIVER = [integer]
Default: ELPH_TRANSPORT_DRIVER = ELPH_TRANSPORT_DRIVER 

Description: choose method to compute the Onsager coefficients, which are then used to compute the transport coefficients.

---

The transport coefficients can be computed using either of the options bellow, each with its own advantages and disadvantages.

ELPH_TRANSPORT_DRIVER = 1

Use a linear grid of energies with TRANSPORT_NEDOS in the interval determined by ELPH_TRANSPORT_DFERMI_TOL or ELPH_TRANSPORT_EMIN and ELPH_TRANSPORT_EMAX and the Simpson integration rule to evaluate the Onsager coefficients.

ELPH_TRANSPORT_DRIVER = 2

Use Gauss-Legendre integration to evaluate the Onsager coefficients. The convergence of the integral can be checked by performing a convergence study with respect to TRANSPORT_NEDOS alone.