tightbinder.topology.calculate_chern_number#

calculate_chern_number(wcc_flow)[source]#

Routine to compute the first Chern number from the WCC flow. Useful for Chern insulators. NB: This routine gives an estimate of the Chern number (non quantized), and is more precise the more kpoints there are in the calculation.

Parameters:

wcc_flow (ndarray) – Array with the WCCs for all paths.

Return type:

float

Returns:

Value of Chern number.