Struct QuantumState 

pub struct QuantumState {
    pub num_qubits: usize,
    pub amplitudes: ComplexVector,
    pub phases: Vec<f64>,
    /* private fields */
}

Quantum state representation

Fields

num_qubits: usize

Number of qubits

amplitudes: ComplexVector

Amplitude vector (2^num_qubits complex numbers)

phases: Vec<f64>

Phase factors

Implementations

impl QuantumState

pub fn new(num_qubits: usize) -> Result<Self>

Create a new quantum state in |0…0⟩ state

pub fn uniform_superposition(num_qubits: usize) -> Result<Self>

Create a uniform superposition state |+…+⟩

pub fn random(num_qubits: usize) -> Result<Self>

Create a random quantum state

pub fn get_probability(&self, state_index: usize) -> f64

Get the probability of measuring a specific state

pub fn probabilities(&mut self) -> &[f64]

Get all probabilities

pub fn normalize(&mut self) -> Result<()>

Normalize the quantum state

pub fn apply_single_qubit_gate( &mut self, qubit: usize, gate: &Gate, ) -> Result<()>

Apply a single-qubit gate

pub fn apply_two_qubit_gate( &mut self, control: usize, target: usize, gate: &TwoQubitGate, ) -> Result<()>

Apply a two-qubit gate (like CNOT)

pub fn measure(&mut self) -> usize

Measure the quantum state and collapse it

pub fn measure_qubit(&mut self, qubit: usize) -> Result<u8>

Measure a specific qubit

pub fn entanglement_entropy( &self, qubit_a: usize, qubit_b: usize, ) -> Result<f64>

Calculate the entanglement entropy between two qubits

pub fn fidelity(&self, other: &QuantumState) -> Result<f64>

Get the fidelity with another quantum state

pub fn apply_phase(&mut self, qubit: usize, phase: f64) -> Result<()>

Apply a phase to a specific qubit

pub fn expectation_pauli( &self, qubit: usize, pauli: PauliOperator, ) -> Result<f64>

Get the expectation value of a Pauli operator

Trait Implementations

impl Clone for QuantumState

fn clone(&self) -> QuantumState

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for QuantumState

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for QuantumState

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for QuantumState

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.