bose_einstein

sisl.physics.bose_einstein(E, kT=0.1, mu=0.0)

Bose-Einstein distribution function

\[n_B(E,k_BT,\mu) = \frac{1}{\exp\Big[\frac{E - \mu}{k_BT}\Big] - 1}\]

Parameters:

E: array_like

energy evaluation points

kT: float, optional

temperature broadening

mu: float, optional

chemical potential

Returns:

numpy.ndarray

the Bose-Einstein distribution, same length as E