supergrad.utils.operators.qdiags

supergrad.utils.operators.qdiags(diagonals, offsets)

Constructs an operator from an array of diagonals.

SuperGrad-supported implementation of qutip.core.operators.qdiags().

Original docstring below.

Parameters:

• diagonals (array_like or sequence of array_like) – Array of elements to place along the selected diagonals.

• offsets (int or sequence of ints, optional) –

  Sequence for diagonals to be set:

  • k=0 main diagonal

  • k>0 kth upper diagonal

  • k<0 kth lower diagonal