pub struct KakDecomposition {
    pub global_phase: CalculatorFloat,
    pub k_vector: [CalculatorFloat; 3],
    pub circuit_before: Option<Circuit>,
    pub circuit_after: Option<Circuit>,
}
Expand description

The KAK decomposition of a two-qubit gate.

Each two-qubit gate can be described by a KAK decomposition (http://arxiv.org/abs/quant-ph/0507171).

A two qubit gate is decomposed into four single qubit gates, one for each qubit acting before and after applying the entangling operation based on the k_vector:

U(k_vector) = exp(i (k_vector(0) XX + k_vector(1) YY + k_vector(2) ZZ))

This struct contains all information on the KAK decomposition of a two qubit gate.

Fields

global_phase: CalculatorFloat

Global phase of KAK decomposition

k_vector: [CalculatorFloat; 3]

Three component vector of the KAK decomposition

circuit_before: Option<Circuit>

Circuit including operations acting on control and target qubits before two-qubit entangling

circuit_after: Option<Circuit>

Circuit including operations acting on control and target qubits after two-qubit entangling

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