Struct GeneralUnitary2Q 

pub struct GeneralUnitary2Q {
    pub support: [u32; 2],
    pub table: [[Complex64; 16]; 16],
}

Generic 2-qubit unitary, stored as a 16x16 Pauli-expansion table.

Fields

support: [u32; 2]

The two qubits this gate acts on.

table: [[Complex64; 16]; 16]

16x16 table: rows indexed by the 4-bit packed input Pauli on the two support qubits, columns by the output Pauli, entries are complex coefficients.

Trait Implementations

impl Channel<1> for GeneralUnitary2Q

fn max_fanout(&self) -> usize

Maximum number of output terms produced per input term. Used by the engine to size the scratch buffer up-front.

fn support(&self) -> &[u32]

Qubits this channel acts on. Outputs differ from inputs only at these bit positions; the engine uses this for bucket layout (§5).

fn apply( &self, _input_x: &[u64; 1], _input_z: &[u64; 1], _coeff: Complex64, _out: &mut OutputBuffer<'_, 1>, )

Apply the channel to a single input term, writing outputs to out.

fn apply_adjoint( &self, input_x: &[u64; W], input_z: &[u64; W], coeff: Complex64, out: &mut OutputBuffer<'_, W>, )

Apply the channel’s adjoint to a single input term, writing outputs to out. Used by the engine in Direction::Heisenberg mode for backpropagating observables.