triqs.dos.dos.DOS

class triqs.dos.dos.DOS(eps, rho, name='')[source]

Bases: object

Density of states of fermions on a 1D epsilon grid.

Stores a discrete representation of

\[\rho(\epsilon) \equiv \sum_k^{'} \delta(\epsilon - \epsilon_k),\]

normalised so that \(\int_{-\infty}^{\infty} d\epsilon\, \rho(\epsilon) = 1\).

Parameters:

epsarray-like: 1D array of energy values \(\epsilon_i\).
rhoarray-like: 1D array of DOS values \(\rho(\epsilon_i)\), same length as eps.
namestr, optional: Name of the DOS / orbital, used as the plot label. Default ''.

Attributes

eps	(numpy.ndarray) Energy grid.
rho	(numpy.ndarray) DOS values on the grid.
name	(str) Name of the DOS / orbital.

Methods

`copy`()	Return an independent `DOS` with the same `eps`, `rho` and `name`.
`density`([mu])	Integrated density of free fermions up to chemical potential `mu`.

Notes

The class implements the TRIQS plot protocol, so instances can be passed directly to triqs.plot.mpl_interface.oplot(). HDF5 read/write is registered via h5.formats.register_class().