Merge pull request #997 from mtreinish/fix-qiskit-0.20.0

Fix statevector snapshot access in MPS tutorial

Author: nonhermitian

tutorials/simulators/7_matrix_product_state_method.ipynb

@@ -65,7 +65,7 @@
     {
      "data": {
       "text/plain": [
-       "{'00': 520, '11': 504}"
+       "{'11': 532, '00': 492}"
       ]
      },
      "execution_count": 1,
@@ -134,7 +134,7 @@
     {
      "data": {
       "text/plain": [
-       "[[(0.7071067811865475+0j), 0j, 0j, (0.7071067811865475+0j)]]"
+       "[(0.7071067811865475+0j), 0j, 0j, (0.7071067811865475+0j)]"
       ]
      },
      "execution_count": 3,
@@ -154,11 +154,9 @@
     "# Execute\n",
     "job_sim = execute([circ], QasmSimulator(), backend_options=backend_opts_mps)\n",
     "result = job_sim.result()\n",
-    "res = result.results\n",
     "\n",
     "#print the state vector\n",
-    "statevector = res[0].data.snapshots.statevector\n",
-    "statevector['my_sv']"
+    "result.data()['snapshots']['statevector']['my_sv'][0]"
    ]
   },
   {
@@ -174,7 +172,7 @@
     {
      "data": {
       "text/plain": [
-       "{'00': 517, '11': 507}"
+       "{'11': 516, '00': 508}"
       ]
      },
      "execution_count": 4,
@@ -210,14 +208,14 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "Time taken: 2.162709951400757 sec\n"
+      "Time taken: 0.677933931350708 sec\n"
      ]
     },
     {
      "data": {
       "text/plain": [
-       "{'11111111111111111111111111111111111111111111111111': 486,\n",
-       " '00000000000000000000000000000000000000000000000000': 538}"
+       "{'11111111111111111111111111111111111111111111111111': 543,\n",
+       " '00000000000000000000000000000000000000000000000000': 481}"
       ]
      },
      "execution_count": 5,
@@ -258,8 +256,8 @@
     {
      "data": {
       "text/html": [
-       "<h3>Version Information</h3><table><tr><th>Qiskit Software</th><th>Version</th></tr><tr><td>Qiskit</td><td>None</td></tr><tr><td>Terra</td><td>0.14.0</td></tr><tr><td>Aer</td><td>0.6.0</td></tr><tr><td>Ignis</td><td>None</td></tr><tr><td>Aqua</td><td>None</td></tr><tr><td>IBM Q Provider</td><td>0.6.1</td></tr><tr><th>System information</th></tr><tr><td>Python</td><td>3.7.7 (default, Mar 26 2020, 10:32:53) \n",
-       "[Clang 4.0.1 (tags/RELEASE_401/final)]</td></tr><tr><td>OS</td><td>Darwin</td></tr><tr><td>CPUs</td><td>4</td></tr><tr><td>Memory (Gb)</td><td>16.0</td></tr><tr><td colspan='2'>Tue Apr 28 13:43:42 2020 EDT</td></tr></table>"
+       "<h3>Version Information</h3><table><tr><th>Qiskit Software</th><th>Version</th></tr><tr><td>Qiskit</td><td>0.19.6</td></tr><tr><td>Terra</td><td>0.14.2</td></tr><tr><td>Aer</td><td>0.5.2</td></tr><tr><td>Ignis</td><td>0.3.3</td></tr><tr><td>Aqua</td><td>0.7.3</td></tr><tr><td>IBM Q Provider</td><td>0.7.2</td></tr><tr><th>System information</th></tr><tr><td>Python</td><td>3.8.5 (default, Jul 27 2020, 08:42:51) \n",
+       "[GCC 10.1.0]</td></tr><tr><td>OS</td><td>Linux</td></tr><tr><td>CPUs</td><td>32</td></tr><tr><td>Memory (Gb)</td><td>125.72603988647461</td></tr><tr><td colspan='2'>Mon Aug 10 13:36:15 2020 EDT</td></tr></table>"
       ],
       "text/plain": [
        "<IPython.core.display.HTML object>"
@@ -311,7 +309,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.7.7"
+   "version": "3.8.5"
   },
   "varInspector": {
    "cols": {