# This code is part of Qiskit.
#
# (C) Copyright IBM 2019.
#
# 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.
#
# 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.
"""
Fake Melbourne device (14 qubit).
"""
import os
import json
from qiskit.providers.models import GateConfig, QasmBackendConfiguration, BackendProperties
from qiskit.providers.fake_provider.fake_backend import FakeBackend
from qiskit.providers.fake_provider import fake_backend
[문서]class FakeMelbourneV2(fake_backend.FakeBackendV2):
"""A fake 14 qubit backend."""
dirname = os.path.dirname(__file__)
conf_filename = "conf_melbourne.json"
props_filename = "props_melbourne.json"
backend_name = "fake_melbourne"
[문서]class FakeMelbourne(FakeBackend):
"""A fake 14 qubit backend."""
def __init__(self):
"""
.. code-block:: text
0 ← 1 → 2 → 3 ← 4 ← 5 → 6
↑ ↑ ↑ ↓ ↓ ↓
13 → 12 ← 11 → 10 ← 9 → 8 ← 7
"""
cmap = [
[1, 0],
[1, 2],
[2, 3],
[4, 3],
[4, 10],
[5, 4],
[5, 6],
[5, 9],
[6, 8],
[7, 8],
[9, 8],
[9, 10],
[11, 3],
[11, 10],
[11, 12],
[12, 2],
[13, 1],
[13, 12],
]
configuration = QasmBackendConfiguration(
backend_name="fake_melbourne",
backend_version="0.0.0",
n_qubits=14,
basis_gates=["u1", "u2", "u3", "cx", "id"],
simulator=False,
local=True,
conditional=False,
open_pulse=False,
memory=False,
max_shots=65536,
max_experiments=900,
gates=[GateConfig(name="TODO", parameters=[], qasm_def="TODO")],
coupling_map=cmap,
)
super().__init__(configuration)
[문서] def properties(self):
"""Returns a snapshot of device properties"""
dirname = os.path.dirname(__file__)
filename = "props_melbourne.json"
with open(os.path.join(dirname, filename)) as f_prop:
props = json.load(f_prop)
return BackendProperties.from_dict(props)