Source code for qiskit_aqt_provider._offline_sim.provider

# This code is part of Qiskit.
#
# (C) Copyright Alpine Quantum Technologies GmbH 2023
#
# This code is licensed under the Apache License, Version 2.0. You may
# obtain a copy of this license in the LICENSE.txt file in the root directory
# of this source tree or at [http://www.apache.org/licenses/LICENSE-2.0](http://www.apache.org/licenses/LICENSE-2.0).
#
# Any modifications or derivative works of this code must retain this
# copyright notice, and modified files need to carry a notice indicating
# that they have been altered from the originals.

from qiskit_aer import AerSimulator
from qiskit_aer.noise import NoiseModel, depolarizing_error

from qiskit_aqt_provider._offline_sim.resource import OfflineSimulatorResource, OfflineSimulatorResourceConfig




class OfflineSimulatorProvider:
    """A provider for offline simulators."""



    def noisy(self) -> OfflineSimulatorResource:
        """Returns a noisy offline simulator resource."""
        noise_model = NoiseModel(basis_gates=["r", "rz", "rxx"])
        noise_model.add_all_qubit_quantum_error(depolarizing_error(0.003, 1), ["r"])
        noise_model.add_all_qubit_quantum_error(depolarizing_error(0.01, 2), ["rxx"])

        return OfflineSimulatorResource(
            config=OfflineSimulatorResourceConfig(
                name="offline_simulator_noise",
                number_of_ions=20,
                simulator=AerSimulator(method="statevector", noise_model=noise_model),
            )
        )




    def ideal(self) -> OfflineSimulatorResource:
        """Returns an ideal offline simulator resource."""
        return OfflineSimulatorResource(
            config=OfflineSimulatorResourceConfig(
                name="offline_simulator_no_noise",
                number_of_ions=20,
                simulator=AerSimulator(method="statevector"),
            )
        )