New fake backends: Cambridge, Paris, London, Valencia, Essex, Armonk (#…

…4129)

* Revert "Moving up some parameter checks in the class hierarchy (#3668)" (#4117)

This change has some unforseen backwards compatibility implications and
is causing downstream projects like qiskit-aer to fail CI now. Given the
pending release and this not being critical, this commit reverts this
commit and we can revisit it after the 0.13.0 release.

This reverts commit 5afe87c.

add new fake backends

* fix dt and dtm conversion by qiskit to SI

* fix imports

* lint

* Update qiskit/test/mock/backends/armonk/fake_armonk.py

Co-Authored-By: Kevin Krsulich <kevin@krsulich.net>

Co-authored-by: Matthew Treinish <mtreinish@kortar.org>
Co-authored-by: Kevin Krsulich <kevin@krsulich.net>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

qiskit/test/mock/backends/__init__.py

@@ -17,10 +17,14 @@
 Mocked versions of real quantum backends.
 """
 
+from .armonk import FakeArmonk
 from .yorktown import FakeYorktown
 from .tenerife import FakeTenerife
 from .ourense import FakeOurense
 from .vigo import FakeVigo
+from .valencia import FakeValencia
+from .london import FakeLondon
+from .essex import FakeEssex
 from .burlington import FakeBurlington
 from .melbourne import FakeMelbourne
 from .rueschlikon import FakeRueschlikon
@@ -30,4 +34,6 @@
 from .singapore import FakeSingapore
 from .johannesburg import FakeJohannesburg
 from .boeblingen import FakeBoeblingen
+from .cambridge import FakeCambridge
+from .paris import FakeParis
 from .rochester import FakeRochester

qiskit/test/mock/backends/armonk/__init__.py

@@ -0,0 +1,17 @@
+# -*- coding: utf-8 -*-
+
+# This code is part of Qiskit.
+#
+# (C) Copyright IBM 2020.
+#
+# 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.
+
+# pylint: disable=missing-docstring
+
+from .fake_armonk import FakeArmonk

qiskit/test/mock/backends/armonk/conf_armonk.json

@@ -0,0 +1 @@
+{"open_pulse": true, "dtm": 0.22222222222222221, "n_registers": 1, "local": false, "backend_name": "ibmq_armonk", "dt": 0.22222222222222221, "qubit_lo_range": [[4474290401.545527, 5474290401.545527]], "credits_required": true, "meas_lo_range": [[6493427855.0, 7493427855.0]], "gates": [{"coupling_map": [[0]], "parameters": [], "qasm_def": "gate id q { U(0,0,0) q; }", "name": "id"}, {"coupling_map": [[0]], "parameters": ["lambda"], "qasm_def": "gate u1(lambda) q { U(0,0,lambda) q; }", "name": "u1"}, {"coupling_map": [[0]], "parameters": ["phi", "lambda"], "qasm_def": "gate u2(phi,lambda) q { U(pi/2,phi,lambda) q; }", "name": "u2"}, {"coupling_map": [[0]], "parameters": ["theta", "phi", "lambda"], "qasm_def": "gate u3(theta,phi,lambda) q { U(theta,phi,lambda) q; }", "name": "u3"}], "simulator": false, "coupling_map": null, "n_uchannels": 0, "memory": true, "meas_map": [[0]], "u_channel_lo": [], "max_experiments": 75, "max_shots": 8192, "backend_version": "1.1.0", "basis_gates": ["id", "u1", "u2", "u3"], "conditional": false, "meas_levels": [1, 2], "conditional_latency": [], "sample_name": "SPARROW", "n_qubits": 1, "description": "1 qubit device", "acquisition_latency": [], "online_date": "2019-10-16T04:00:00+00:00", "rep_times": [0], "discriminators": ["linear_discriminator", "quadratic_discriminator"], "meas_kernels": ["boxcar"], "url": "None", "allow_q_object": true, "allow_object_storage": true, "quantum_volume": null, "hamiltonian": {"description": "Qubits are modelled as a two level system. Qubits are coupled through resonator buses. The provided Hamiltonian has been projected into the zero excitation subspace of the resonator buses leading to an effective qubit-qubit flip-flop interaction. The qubit resonance frequencies in the Hamiltonian are the cavity dressed frequencies and not exactly what is returned by the backend defaults, which also includes the dressing due to the qubit-qubit interactions.\nWarning: Currently not all system Hamiltonian information is available to the public, missing values have been replaced with 0.\n", "h_latex": "\\begin{align} \\mathcal{H}/\\hbar = & \\sum_{i=0}^{0}\\left(\\frac{\\omega_{q,i}}{2} (\\mathbb{1}_i-\\sigma_i^{z})+ \\Omega_{d,i}D_i(t)\\sigma_i^{X}\\right) \\\\ \\end{align}", "h_str": ["_SUM[i,0,0,wq{i}/2*(I{i}-Z{i})]", "_SUM[i,0,0,omegad{i}*X{i}||D{i}]"], "osc": {}, "qub": {"0": 2}, "vars": {"omegad0": 0, "wq0": 31.254388364635304}}, "uchannels_enabled": true, "allow_q_circuit": false}

qiskit/test/mock/backends/armonk/fake_armonk.py

@@ -0,0 +1,65 @@
+# -*- coding: utf-8 -*-
+
+# 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 Armonk device (5 qubit).
+"""
+
+import os
+import json
+
+from qiskit.providers.models import (PulseDefaults, PulseBackendConfiguration,
+                                     BackendProperties)
+from qiskit.test.mock.fake_backend import FakeBackend
+
+
+class FakeArmonk(FakeBackend):
+    """A fake 1 qubit backend."""
+
+    def __init__(self):
+        """
+         0
+        """
+        dirname = os.path.dirname(__file__)
+        filename = "conf_armonk.json"
+        with open(os.path.join(dirname, filename), "r") as f_conf:
+            conf = json.load(f_conf)
+
+        configuration = PulseBackendConfiguration.from_dict(conf)
+        configuration.backend_name = 'fake_armonk'
+        self._defaults = None
+        self._properties = None
+        super().__init__(configuration)
+
+    def properties(self):
+        """Returns a snapshot of device properties as recorded on 04/10/20.
+        """
+        if not self._properties:
+            dirname = os.path.dirname(__file__)
+            filename = "props_armonk.json"
+            with open(os.path.join(dirname, filename), "r") as f_prop:
+                props = json.load(f_prop)
+            self._properties = BackendProperties.from_dict(props)
+        return self._properties
+
+    def defaults(self):
+        """Returns a snapshot of device defaults as recorded on 04/10/20.
+        """
+        if not self._defaults:
+            dirname = os.path.dirname(__file__)
+            filename = "defs_armonk.json"
+            with open(os.path.join(dirname, filename), "r") as f_defs:
+                defs = json.load(f_defs)
+            self._defaults = PulseDefaults.from_dict(defs)
+        return self._defaults

qiskit/test/mock/backends/armonk/props_armonk.json

@@ -0,0 +1 @@
+{"general": [], "gates": [{"gate": "id", "qubits": [0], "parameters": [{"name": "gate_error", "value": 0.0004846156972237767, "date": "2020-04-09T21:14:21+00:00", "unit": ""}, {"name": "gate_length", "value": 142.22222222222223, "date": "2020-04-09T21:16:16+00:00", "unit": "ns"}], "name": "id_0"}, {"gate": "u1", "qubits": [0], "parameters": [{"name": "gate_error", "value": 0.0, "date": "2020-04-09T21:14:21+00:00", "unit": ""}, {"name": "gate_length", "value": 0.0, "date": "2020-04-09T21:16:16+00:00", "unit": "ns"}], "name": "u1_0"}, {"gate": "u2", "qubits": [0], "parameters": [{"name": "gate_error", "value": 0.0004846156972237767, "date": "2020-04-09T21:14:21+00:00", "unit": ""}, {"name": "gate_length", "value": 142.22222222222223, "date": "2020-04-09T21:16:16+00:00", "unit": "ns"}], "name": "u2_0"}, {"gate": "u3", "qubits": [0], "parameters": [{"name": "gate_error", "value": 0.0009692313944475534, "date": "2020-04-09T21:14:21+00:00", "unit": ""}, {"name": "gate_length", "value": 284.44444444444446, "date": "2020-04-09T21:16:16+00:00", "unit": "ns"}], "name": "u3_0"}], "backend_version": "1.1.0", "backend_name": "ibmq_armonk", "qubits": [[{"name": "T1", "value": 129.5098438188917, "date": "2020-04-09T21:10:56+00:00", "unit": "\u00b5s"}, {"name": "T2", "value": 174.56556513693073, "date": "2020-04-09T21:12:24+00:00", "unit": "\u00b5s"}, {"name": "frequency", "value": 4.974290401545527, "date": "2020-04-09T21:16:16+00:00", "unit": "GHz"}, {"name": "readout_error", "value": 0.06600000000000006, "date": "2020-04-09T21:10:04+00:00", "unit": ""}, {"name": "prob_meas0_prep1", "value": 0.058, "date": "2020-04-09T21:10:04+00:00", "unit": ""}, {"name": "prob_meas1_prep0", "value": 0.07399999999999995, "date": "2020-04-09T21:10:04+00:00", "unit": ""}]], "last_update_date": "2020-04-09T21:16:16+00:00"}

qiskit/test/mock/backends/cambridge/__init__.py

@@ -0,0 +1,17 @@
+# -*- coding: utf-8 -*-
+
+# 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.
+
+# pylint: disable=missing-docstring
+
+from .fake_cambridge import FakeCambridge

qiskit/test/mock/backends/cambridge/conf_cambridge.json

@@ -0,0 +1 @@
+{"open_pulse": false, "n_registers": 1, "local": false, "backend_name": "ibmq_cambridge", "credits_required": true, "gates": [{"coupling_map": [[0], [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12], [13], [14], [15], [16], [17], [18], [19], [20], [21], [22], [23], [24], [25], [26], [27]], "parameters": [], "qasm_def": "gate id q { U(0,0,0) q; }", "name": "id"}, {"coupling_map": [[0], [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12], [13], [14], [15], [16], [17], [18], [19], [20], [21], [22], [23], [24], [25], [26], [27]], "parameters": ["lambda"], "qasm_def": "gate u1(lambda) q { U(0,0,lambda) q; }", "name": "u1"}, {"coupling_map": [[0], [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12], [13], [14], [15], [16], [17], [18], [19], [20], [21], [22], [23], [24], [25], [26], [27]], "parameters": ["phi", "lambda"], "qasm_def": "gate u2(phi,lambda) q { U(pi/2,phi,lambda) q; }", "name": "u2"}, {"coupling_map": [[0], [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12], [13], [14], [15], [16], [17], [18], [19], [20], [21], [22], [23], [24], [25], [26], [27]], "parameters": ["theta", "phi", "lambda"], "qasm_def": "gate u3(theta,phi,lambda) q { U(theta,phi,lambda) q; }", "name": "u3"}, {"coupling_map": [[0, 1], [0, 5], [1, 0], [1, 2], [2, 1], [2, 3], [3, 2], [3, 4], [4, 3], [4, 6], [5, 0], [5, 9], [6, 4], [6, 13], [7, 8], [7, 16], [8, 7], [8, 9], [9, 5], [9, 8], [9, 10], [10, 9], [10, 11], [11, 10], [11, 12], [11, 17], [12, 11], [12, 13], [13, 6], [13, 12], [13, 14], [14, 13], [14, 15], [15, 14], [15, 18], [16, 7], [16, 19], [17, 11], [17, 23], [18, 15], [18, 27], [19, 16], [19, 20], [20, 19], [20, 21], [21, 20], [21, 22], [22, 21], [22, 23], [23, 17], [23, 22], [23, 24], [24, 23], [24, 25], [25, 24], [25, 26], [26, 25], [26, 27], [27, 18], [27, 26]], "parameters": [], "qasm_def": "gate cx q1,q2 { CX q1,q2; }", "name": "cx"}], "simulator": false, "coupling_map": [[0, 1], [0, 5], [1, 0], [1, 2], [2, 1], [2, 3], [3, 2], [3, 4], [4, 3], [4, 6], [5, 0], [5, 9], [6, 4], [6, 13], [7, 8], [7, 16], [8, 7], [8, 9], [9, 5], [9, 8], [9, 10], [10, 9], [10, 11], [11, 10], [11, 12], [11, 17], [12, 11], [12, 13], [13, 6], [13, 12], [13, 14], [14, 13], [14, 15], [15, 14], [15, 18], [16, 7], [16, 19], [17, 11], [17, 23], [18, 15], [18, 27], [19, 16], [19, 20], [20, 19], [20, 21], [21, 20], [21, 22], [22, 21], [22, 23], [23, 17], [23, 22], [23, 24], [24, 23], [24, 25], [25, 24], [25, 26], [26, 25], [26, 27], [27, 18], [27, 26]], "memory": true, "max_experiments": 900, "max_shots": 8192, "backend_version": "1.0.0", "basis_gates": ["u1", "u2", "u3", "cx", "id"], "conditional": false, "sample_name": "Falcon", "n_qubits": 28, "description": "28 qubit device", "online_date": "2019-11-08T05:00:00+00:00", "url": "None", "allow_q_object": true, "allow_object_storage": true, "quantum_volume": 8, "allow_q_circuit": false}

qiskit/test/mock/backends/cambridge/fake_cambridge.py

@@ -0,0 +1,61 @@
+# -*- coding: utf-8 -*-
+
+# 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 Cambridge device (20 qubit).
+"""
+
+import os
+import json
+
+from qiskit.providers.models import QasmBackendConfiguration, BackendProperties
+from qiskit.test.mock.fake_backend import FakeBackend
+
+
+class FakeCambridge(FakeBackend):
+    """A fake Cambridge backend."""
+
+    def __init__(self):
+        """
+                   00 ↔ 01 ↔ 02 ↔ 03 ↔ 04
+                   ↕                    ↕
+                   05                  06
+                   ↕                    ↕
+         07 ↔ 08 ↔ 09 ↔ 10 ↔ 11 ↔ 12 ↔ 13 ↔ 14 ↔ 15
+         ↕                   ↕                    ↕
+         16                  17                  18
+         ↕                   ↕                    ↕
+         19 ↔ 20 ↔ 21 ↔ 22 ↔ 23 ↔ 24 ↔ 25 ↔ 26 ↔ 27
+        """
+        dirname = os.path.dirname(__file__)
+        filename = "conf_cambridge.json"
+        with open(os.path.join(dirname, filename), "r") as f_conf:
+            conf = json.load(f_conf)
+
+        configuration = QasmBackendConfiguration.from_dict(conf)
+        configuration.backend_name = 'fake_cambridge'
+        self._defaults = None
+        self._properties = None
+        super().__init__(configuration)
+
+    def properties(self):
+        """Returns a snapshot of device properties as recorded on 10/24/19.
+        """
+        if not self._properties:
+            dirname = os.path.dirname(__file__)
+            filename = "props_cambridge.json"
+            with open(os.path.join(dirname, filename), "r") as f_prop:
+                props = json.load(f_prop)
+            self._properties = BackendProperties.from_dict(props)
+        return self._properties

qiskit/test/mock/backends/essex/__init__.py

@@ -0,0 +1,17 @@
+# -*- coding: utf-8 -*-
+
+# 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.
+
+# pylint: disable=missing-docstring
+
+from .fake_essex import FakeEssex

qiskit/test/mock/backends/essex/conf_essex.json

@@ -0,0 +1 @@
+{"open_pulse": false, "n_registers": 1, "local": false, "backend_name": "ibmq_essex", "credits_required": true, "gates": [{"coupling_map": [[0], [1], [2], [3], [4]], "parameters": [], "qasm_def": "gate id q { U(0,0,0) q; }", "name": "id"}, {"coupling_map": [[0], [1], [2], [3], [4]], "parameters": ["lambda"], "qasm_def": "gate u1(lambda) q { U(0,0,lambda) q; }", "name": "u1"}, {"coupling_map": [[0], [1], [2], [3], [4]], "parameters": ["phi", "lambda"], "qasm_def": "gate u2(phi,lambda) q { U(pi/2,phi,lambda) q; }", "name": "u2"}, {"coupling_map": [[0], [1], [2], [3], [4]], "parameters": ["theta", "phi", "lambda"], "qasm_def": "gate u3(theta,phi,lambda) q { U(theta,phi,lambda) q; }", "name": "u3"}, {"coupling_map": [[0, 1], [1, 0], [1, 2], [1, 3], [2, 1], [3, 1], [3, 4], [4, 3]], "parameters": [], "qasm_def": "gate cx q1,q2 { CX q1,q2; }", "name": "cx"}], "simulator": false, "coupling_map": [[0, 1], [1, 0], [1, 2], [1, 3], [2, 1], [3, 1], [3, 4], [4, 3]], "memory": true, "max_experiments": 75, "max_shots": 8192, "backend_version": "1.0.1", "basis_gates": ["u1", "u2", "u3", "cx", "id"], "conditional": false, "sample_name": "Giraffe", "n_qubits": 5, "description": "5 qubit device Essex", "online_date": "2019-09-13T04:00:00+00:00", "url": "None", "allow_q_object": true, "allow_object_storage": true, "quantum_volume": 8, "allow_q_circuit": false}

qiskit/test/mock/backends/essex/fake_essex.py

@@ -0,0 +1,57 @@
+# -*- coding: utf-8 -*-
+
+# 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 Essex device (5 qubit).
+"""
+
+import os
+import json
+
+from qiskit.providers.models import QasmBackendConfiguration, BackendProperties
+from qiskit.test.mock.fake_backend import FakeBackend
+
+
+class FakeEssex(FakeBackend):
+    """A fake 5 qubit backend."""
+
+    def __init__(self):
+        """
+         0 ↔ 1 ↔ 2
+             ↕
+             3
+             ↕
+             4
+        """
+        dirname = os.path.dirname(__file__)
+        filename = "conf_essex.json"
+        with open(os.path.join(dirname, filename), "r") as f_conf:
+            conf = json.load(f_conf)
+
+        configuration = QasmBackendConfiguration.from_dict(conf)
+        configuration.backend_name = 'fake_essex'
+        self._defaults = None
+        self._properties = None
+        super().__init__(configuration)
+
+    def properties(self):
+        """Returns a snapshot of device properties as recorded on 04/10/20.
+        """
+        if not self._properties:
+            dirname = os.path.dirname(__file__)
+            filename = "props_essex.json"
+            with open(os.path.join(dirname, filename), "r") as f_prop:
+                props = json.load(f_prop)
+            self._properties = BackendProperties.from_dict(props)
+        return self._properties