ket.quforge

QuForge Interface for Ket

The class QuForgeKet enables the use of QuForge, an efficient qudit simulator, within Ket. This simulator supports expected value calculation and gradient evaluation, making it a great choice for Quantum Machine Learning.

This module requires additional dependencies from ket-lang[qml]. Install with: pip install ket-lang[qml].

Classes ket.quforge

QuForgeKet

QuForge Interface for Ket

class QuForgeKet(num_qubits: int, device: Literal['cpu', 'cuda'] = 'cpu', sparse: bool = True, gradient: bool = True)

QuForge Interface for Ket

This simulator supports expected value calculation and gradient evaluation, making it a great choice for Quantum Machine Learning.

Parameters:

• num_qubits – Number of qubits to simulate.

• device – Specifies whether to run the simulation on the CPU or GPU. Defaults to “cpu”.

• sparse – If True, uses a sparse representation for improved performance on large systems. Defaults to True.

• gradient – Enables gradient evaluation for optimization tasks. Defaults to True.

pauli_x(target, control)

Apply a Pauli-X gate to the target qubit.

Warning

This method is called by Libket and should not be called directly.

pauli_y(target, control)

Apply a Pauli-Y gate to the target qubit.

Warning

This method is called by Libket and should not be called directly.

pauli_z(target, control)

Apply a Pauli-Z gate to the target qubit.

Warning

This method is called by Libket and should not be called directly.

hadamard(target, control)

Apply a Hadamard gate to the target qubit.

Warning

This method is called by Libket and should not be called directly.

rotation_x(target, control, **kwargs)

Apply a X-Rotation gate to the target qubit.

Warning

This method is called by Libket and should not be called directly.

rotation_y(target, control, **kwargs)

Apply a Y-Rotation gate to the target qubit.

Warning

This method is called by Libket and should not be called directly.

rotation_z(target, control, **kwargs)

Apply a Z-Rotation gate to the target qubit.

Warning

This method is called by Libket and should not be called directly.

phase(target, control, **kwargs)

Apply a Phase gate to the target qubit.

Warning

This method is called by Libket and should not be called directly.

exp_value(_, hamiltonian)

Compute the expectation value.

Warning

This method is called by Libket and should not be called directly.

submit_execution(circuit, parameters)

Get the quantum circuit to execute.

Warning

This method is called by Libket and should not be called directly.

get_result()

Get the result of the quantum circuit execution.

Warning

This method is called by Libket and should not be called directly.

clear()

Clear the data to start a new execution.

Warning

This method is called by Libket and should not be called directly.

connect()

Call ket.clib.libket.BatchExecution.configure with the appropriated arguments to generate the quantum execution target.

Warning

This method is called automatically by Process. It is not necessary to call it manually.