clifford - tsim

`expand_clifford_rotations`

expand_clifford_rotations(source: stim.Circuit) -> stim.Circuit

Return source with half-π parametric rotations expanded to Clifford gates. REPEAT blocks are preserved structurally and expanded recursively.

`is_clifford`

is_clifford(source: stim.Circuit) -> bool

Return True iff every instruction in source is Clifford. Recurses into REPEAT block bodies.

`parametric_to_clifford_gates`

parametric_to_clifford_gates(gate_name: str, params: dict[str, Fraction]) -> list[str] | None

Convert a parametric gate with half-π angles to stim Clifford gate names. Parameters:

gate_name (str) — One of "R_X", "R_Y", "R_Z", "U3".
params (dict[str, Fraction]) — Dict as returned by :func:~tsim.core.parse.parse_parametric_tag.

Returns:

list[str] | None — Stim gate names in circuit order,
list[str] | None — or None when the angles are not half-π multiples.

`parse_parametric_tag`

parse_parametric_tag(instruction: stim.CircuitInstruction) -> tuple[str, dict[str, Fraction]] | None

Parse the parametric tag on an instruction (e.g. I[R_Z(theta=0.3*pi)]). Supports gates: R_Z, R_X, R_Y, U3. Parameters:

instruction (stim.CircuitInstruction) — The stim instruction whose tag will be parsed.

Returns:

tuple[str, dict[str, Fraction]] | None — Tuple of (gate_name, params_dict) when the instruction’s tag is a
tuple[str, dict[str, Fraction]] | None — well-formed parametric tag, or None when the tag is not
tuple[str, dict[str, Fraction]] | None — parametric-looking (no name(...) shape, or empty).

Raises:

ValueError — When the tag looks parametric (matches name(...)) but is malformed: a parameter value does not parse, the gate name is unknown, or the parameter keys do not match the expected set for the gate.

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