Trait LiveExecution 

pub trait LiveExecution {
    // Required methods
    fn compute_gate(&mut self, gate: &GateInstruction) -> Result<(), KetError>;
    fn compute_native_gates(
        &mut self,
        gates: &[NativeGate],
    ) -> Result<(), KetError>;
    fn measure(&mut self, qubits: &[usize]) -> Result<u64, KetError>;
    fn dump(&mut self, qubits: &[usize]) -> Result<DumpData, KetError>;
    fn sample(
        &mut self,
        qubits: &[usize],
        shots: usize,
    ) -> Result<SampleData, KetError>;
    fn exp_value(&mut self, hamiltonian: Hamiltonian) -> Result<f64, KetError>;
}

A backend that executes gates as they arrive and can return mid-circuit measurement results immediately.

Required Methods

fn compute_gate(&mut self, gate: &GateInstruction) -> Result<(), KetError>

Dispatches a single logical gate instruction to the backend.

Errors

Implementations may return a KetError if gate dispatch fails.

fn compute_native_gates(&mut self, gates: &[NativeGate]) -> Result<(), KetError>

Dispatches a sequence of already-translated native gate instructions to the backend.

Called by the live-execution path when a NativeGateSet translation layer is configured. The gates slice contains hardware-specific instructions produced by NativeGateSet::translate or NativeGateSet::cnot.

Errors

Implementations may return a KetError if native gate dispatch fails.

fn measure(&mut self, qubits: &[usize]) -> Result<u64, KetError>

Collapses and reads out the specified qubits, returning the result as a packed integer (bit i corresponds to qubits[i]).

Errors

Returns a KetError if measurement fails on the backend.

fn dump(&mut self, qubits: &[usize]) -> Result<DumpData, KetError>

Returns a full state-vector snapshot restricted to qubits.

Errors

Returns a KetError if state dumping fails on the backend.

fn sample( &mut self, qubits: &[usize], shots: usize, ) -> Result<SampleData, KetError>

Samples the measurement distribution of qubits over shots repetitions.

Errors

Returns a KetError if sampling fails on the backend.

fn exp_value(&mut self, hamiltonian: Hamiltonian) -> Result<f64, KetError>

Computes the expectation value of hamiltonian with respect to the current quantum state.

Errors

Returns a KetError if expectation value estimation fails on the backend.

Trait Implementations

impl Debug for dyn LiveExecution

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

Formats the value using the given formatter.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl LiveExecution for CLiveExecution