Module matrix_ops 

Helper functions for using iterators for matrix multiplication

Functions

apply_op

Apply op to the input, adding the results to output. If either start at a nonzero state index in their 0th index, use input/output_offset.

apply_op_overwrite

Apply op to the input, adding the results to output. If either start at a nonzero state index in their 0th index, use input/output_offset.

apply_op_row

Compute vector element at a given row from op applied to input.

apply_op_row_indices

Compute vector element at a given row from op applied to input.

apply_ops

Apply ops to the input, adding the results to output. If either start at a nonzero state index in their 0th index, use input/output_offset. This is much less efficient as compared to repeated applications of apply_op, if your ops can be applied in sequence, do so with apply_op.

full_to_sub

Get the index for a submatrix indexed by indices given the full_index for the larger 2^n by 2^n matrix.

get_index

Get the ith qubit index for op

sub_to_full

Given the sub_index for the submatrix, and a base to overwrite values, get the full index for the 2^n by 2^n matrix.