quantax.operator.none_filter

quantax.operator.none_filter(opstr: str, indices: Sequence[int]) → dict[str, int]

A filter that assigns no update mode.

All operator terms are grouped together regardless of how many sites they change, so the connected configurations are evaluated with a direct forward pass rather than a reference (low-rank) update.

Parameters:

• opstr – The operator string.

• indices – The site indices the operator acts on.

Returns:

An empty dictionary.