bose_einstein

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

Bose-Einstein distribution function

\[n_B(E,k_BT,\mu) = \frac1{\exp\Big[\frac{E - \mu}{k_BT}\Big] - 1}\]

Parameters:

• E (array_like) – energy evaluation points

• kT – temperature broadening

• mu (array_like, optional) – chemical potential

Returns:

numpy.ndarray – the Bose-Einstein distribution, same length as E