Add support for BackendV2

docs/tutorials/03_backends.ipynb

@@ -79,11 +79,11 @@
     {
      "data": {
       "text/plain": [
-       "[<IBMSimulator('ibmq_qasm_simulator')>,\n",
-       " <IBMSimulator('simulator_stabilizer')>,\n",
-       " <IBMSimulator('simulator_mps')>,\n",
-       " <IBMSimulator('simulator_extended_stabilizer')>,\n",
-       " <IBMSimulator('simulator_statevector')>]"
+       "[<IBMBackend('ibmq_qasm_simulator')>,\n",
+       " <IBMBackend('simulator_stabilizer')>,\n",
+       " <IBMBackend('simulator_mps')>,\n",
+       " <IBMBackend('simulator_extended_stabilizer')>,\n",
+       " <IBMBackend('simulator_statevector')>]"
       ]
      },
      "execution_count": 2,
@@ -112,7 +112,7 @@
     {
      "data": {
       "text/plain": [
-       "<IBMSimulator('ibmq_qasm_simulator')>"
+       "<IBMBackend('ibmq_qasm_simulator')>"
       ]
      },
      "execution_count": 3,
@@ -190,7 +190,7 @@
     {
      "data": {
       "text/plain": [
-       "<IBMSimulator('ibmq_qasm_simulator')>"
+       "<IBMBackend('ibmq_qasm_simulator')>"
       ]
      },
      "execution_count": 5,
@@ -250,14 +250,18 @@
     {
      "data": {
       "text/plain": [
-       "[<IBMSimulator('ibmq_qasm_simulator')>,\n",
+       "[<IBMBackend('ibmq_qasm_simulator')>,\n",
+       " <IBMBackend('ibmq_santiago')>,\n",
        " <IBMBackend('ibmq_bogota')>,\n",
+       " <IBMBackend('ibmq_casablanca')>,\n",
+       " <IBMBackend('ibmq_lima')>,\n",
+       " <IBMBackend('ibmq_belem')>,\n",
        " <IBMBackend('ibmq_quito')>,\n",
-       " <IBMSimulator('simulator_statevector')>,\n",
-       " <IBMSimulator('simulator_mps')>,\n",
-       " <IBMSimulator('simulator_extended_stabilizer')>,\n",
-       " <IBMSimulator('simulator_stabilizer')>,\n",
-       " <IBMBackend('ibm_lagos')>]"
+       " <IBMBackend('simulator_statevector')>,\n",
+       " <IBMBackend('simulator_mps')>,\n",
+       " <IBMBackend('simulator_extended_stabilizer')>,\n",
+       " <IBMBackend('simulator_stabilizer')>,\n",
+       " <IBMBackend('ibmq_manila')>]"
       ]
      },
      "execution_count": 7,
@@ -266,7 +270,7 @@
     }
    ],
    "source": [
-    "legacy_service.backends(**program.backend_requirements)"
+    "legacy_service.backends(min_num_qubits=5)"
    ]
   },
   {
@@ -282,13 +286,271 @@
    "id": "345f6414",
    "metadata": {},
    "source": [
-    "As mentioned earlier, the attributes of a backend provides information about the backend. **TODO** - finish when BackendV2 is done"
+    "As mentioned earlier, the attributes of [IBMBackend](https://qiskit.org/documentation/partners/qiskit_ibm_runtime/stubs/qiskit_ibm_runtime.IBMBackend.html#qiskit_ibm_runtime.IBMBackend) class provides information about the backend."
    ]
   },
   {
    "cell_type": "code",
-   "execution_count": 1,
-   "id": "4f60899c",
+   "execution_count": 8,
+   "id": "1a0b6659",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "backend = service.backend(\"ibmq_qasm_simulator\")"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "f1ae6dff",
+   "metadata": {},
+   "source": [
+    "Name of the backend."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "id": "2c7e254d",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "'ibmq_qasm_simulator'"
+      ]
+     },
+     "execution_count": 9,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "backend.name"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "db124d13",
+   "metadata": {},
+   "source": [
+    "Version of the backend."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 10,
+   "id": "969b2a6e",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "'0.1.547'"
+      ]
+     },
+     "execution_count": 10,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "backend.backend_version"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "d80ceba6",
+   "metadata": {},
+   "source": [
+    "Check if the backend is a simulator or real system."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 11,
+   "id": "2f2676d9",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "True"
+      ]
+     },
+     "execution_count": 11,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "backend.simulator"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "79cd9dd7",
+   "metadata": {},
+   "source": [
+    "Number of qubits the backend has."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 12,
+   "id": "5983257b",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "32"
+      ]
+     },
+     "execution_count": 12,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "backend.num_qubits"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "02ea81a6",
+   "metadata": {},
+   "source": [
+    "Maximum number of circuits per job."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 13,
+   "id": "faff03d7",
+   "metadata": {
+    "scrolled": true
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "300"
+      ]
+     },
+     "execution_count": 13,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "backend.max_circuits"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "65c3f744",
+   "metadata": {},
+   "source": [
+    "A list of instructions the backend supports."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 14,
+   "id": "d7c117ea",
+   "metadata": {
+    "scrolled": true
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "[(Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (0,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (1,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (2,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (3,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (4,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (5,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (6,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (7,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (8,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (9,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (10,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (11,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (12,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (13,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (14,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (15,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (16,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (17,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (18,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (19,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (20,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (21,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (22,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (23,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (24,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (25,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (26,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (27,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (28,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (29,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (30,)),\n",
+       " (Instruction(name='measure', num_qubits=1, num_clbits=1, params=[]), (31,))]"
+      ]
+     },
+     "execution_count": 14,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "backend.instructions"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "c91b3de3",
+   "metadata": {},
+   "source": [
+    "Coupling map of the backend."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 15,
+   "id": "9b219fae",
+   "metadata": {
+    "scrolled": false
+   },
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "<qiskit.transpiler.coupling.CouplingMap at 0x7f7e482abf40>"
+      ]
+     },
+     "execution_count": 15,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "backend.coupling_map"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "06590dbc",
+   "metadata": {},
+   "source": [
+    "For a complete list of backend attributes refer to the [IBMBackend](https://qiskit.org/documentation/partners/qiskit_ibm_runtime/stubs/qiskit_ibm_runtime.IBMBackend.html#qiskit_ibm_runtime.IBMBackend) class documentation."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 16,
+   "id": "f6948a08",
    "metadata": {},
    "outputs": [
     {
@@ -327,7 +589,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.1"
+   "version": "3.9.7"
   }
  },
  "nbformat": 4,

docs/tutorials/qka.ipynb

@@ -484,7 +484,7 @@
     "    \"initial_layout\": initial_layout,\n",
     "}\n",
     "\n",
-    "options = {\"backend_name\": backend.name()}\n",
+    "options = {\"backend_name\": backend.name}\n",
     "\n",
     "job = service.run(\n",
     "    program_id=\"quantum-kernel-alignment\",\n",

docs/tutorials/sample_expval_program/qiskit_runtime_expval_program.ipynb

@@ -456,7 +456,7 @@
     "                    pairs if return_stddev=True.\n",
     "    \"\"\"\n",
     "    if not isinstance(backend, str):\n",
-    "        backend = backend.name()\n",
+    "        backend = backend.name\n",
     "    options = {\"backend_name\": backend}\n",
     "\n",
     "    if isinstance(circuits, list) and len(circuits) != 1:\n",

docs/tutorials/sample_vqe_program/qiskit_runtime_vqe_program.ipynb

@@ -416,7 +416,7 @@
     "# Use the local Aer simulator\n",
     "from qiskit import Aer\n",
     "\n",
-    "backend = Aer.get_backend(\"qasm_simulator\")"
+    "backend = Aer.backend(\"qasm_simulator\")"
    ]
   },
   {
@@ -1121,7 +1121,7 @@
     "    Returns:\n",
     "        OptimizeResult: The result in SciPy optimization format.\n",
     "    \"\"\"\n",
-    "    options = {\"backend_name\": backend.name()}\n",
+    "    options = {\"backend_name\": backend.name}\n",
     "\n",
     "    inputs = {}\n",
     "\n",