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QuantumFourierTransform

Struct QuantumFourierTransform 

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pub struct QuantumFourierTransform;
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Quantum Fourier Transform (QFT)

Implements the quantum analogue of the discrete Fourier transform. The QFT is a key component of many quantum algorithms including Shor’s algorithm and quantum phase estimation.

§Mathematical Background

QFT maps |j⟩ → (1/√N) Σₖ exp(2πijk/N)|k⟩ where N = 2ⁿ

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impl QuantumFourierTransform

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pub fn apply<T>(circuit: &mut QuantumCircuit<T>) -> Result<()>
where T: Float + Clone + Debug + Into<f64> + From<f64>,

Apply QFT to a quantum circuit

§Arguments
  • circuit - Quantum circuit to apply QFT to
§Returns

Modified circuit with QFT gates added

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pub fn apply_inverse<T>(circuit: &mut QuantumCircuit<T>) -> Result<()>
where T: Float + Clone + Debug + Into<f64> + From<f64>,

Apply inverse QFT

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