fix deprecated warnings

Author: manoelmarques

chemistry/h2_iqpe.ipynb

@@ -58,7 +58,7 @@
     "        two_qubit_reduction = True\n",
     "        num_orbitals = qubit_op.num_qubits + (2 if two_qubit_reduction else 0)\n",
     "\n",
-    "        num_time_slices = 3000\n",
+    "        num_time_slices = 1\n",
     "        num_iterations = 12\n",
     "        state_in = HartreeFock(qubit_op.num_qubits, num_orbitals,\n",
     "                               num_particles, qubit_mapping, two_qubit_reduction)\n",

chemistry/h2_qpe.ipynb

@@ -67,7 +67,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "The exact ground state energy is: -1.8572750302023817\n"
+      "The exact ground state energy is: -1.8572750302023802\n"
      ]
     }
    ],
@@ -94,7 +94,7 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "The ground state energy as computed by QPE is: -1.8571368753258866\n"
+      "The ground state energy as computed by QPE is: -1.8571368753258861\n"
      ]
     }
    ],
@@ -103,7 +103,7 @@
     "two_qubit_reduction = True\n",
     "num_orbitals = qubit_op.num_qubits + (2 if two_qubit_reduction else 0)\n",
     "\n",
-    "num_time_slices = 50\n",
+    "num_time_slices = 1\n",
     "n_ancillae = 9\n",
     "\n",
     "state_in = HartreeFock(qubit_op.num_qubits, num_orbitals,\n",
@@ -114,7 +114,7 @@
     "          expansion_mode='suzuki',\n",
     "          expansion_order=2, shallow_circuit_concat=True)\n",
     "backend = BasicAer.get_backend('qasm_simulator')\n",
-    "quantum_instance = QuantumInstance(backend, shots=100, pass_manager=PassManager())\n",
+    "quantum_instance = QuantumInstance(backend, shots=100)\n",
     "result_qpe = qpe.run(quantum_instance)\n",
     "print('The ground state energy as computed by QPE is: {}'.format(result_qpe['energy']))"
    ]
@@ -147,7 +147,7 @@
     "    'algorithm': {\n",
     "        'name': 'QPE',\n",
     "        'num_ancillae': 9,\n",
-    "        'num_time_slices': 50,\n",
+    "        'num_time_slices': 1,\n",
     "        'expansion_mode': 'suzuki',\n",
     "        'expansion_order': 2,\n",
     "    },\n",
@@ -181,9 +181,9 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "The groundtruth total ground state energy is           -1.857275030202381.\n",
-      "The total ground state energy as computed by QPE is    -1.857136875325887.\n",
-      "In comparison, the Hartree-Fock ground state energy is -1.8369679912029842.\n"
+      "The groundtruth total ground state energy is           -1.8572750302023793.\n",
+      "The total ground state energy as computed by QPE is    -1.8571368753258861.\n",
+      "In comparison, the Hartree-Fock ground state energy is -1.8369679912029846.\n"
      ]
     }
    ],
@@ -226,7 +226,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.6.1"
+   "version": "3.6.8"
   }
  },
  "nbformat": 4,

chemistry/input_files/iqpe_h2.txt

@@ -28,12 +28,11 @@
    two_qubit_reduction=True
    freeze_core=False
    orbital_reduction=[]
-   max_workers=4
 &end
 
 &algorithm
    name=IQPE
-   num_time_slices=200
+   num_time_slices=1
    expansion_mode=suzuki
    expansion_order=2
    num_iterations=9

chemistry/input_files/qpe_h2.txt

@@ -28,12 +28,11 @@
    two_qubit_reduction=True
    freeze_core=False
    orbital_reduction=[]
-   max_workers=4
 &end
 
 &algorithm
    name=QPE
-   num_time_slices=50
+   num_time_slices=1
    expansion_mode=suzuki
    expansion_order=2
    num_ancillae=9