Merge pull request #621 from qulacs/en-483

Add English version for #483
qulacs · Mar 19, 2024 · 98a2751 · 98a2751
2 parents 011ca87 + c7c084f
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diff --git a/doc/en/source/guide/2.0_python_advanced.ipynb b/doc/en/source/guide/2.0_python_advanced.ipynb
@@ -3434,6 +3434,56 @@
     "gate = Measurement(target, classical_pos)\n"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "#### ProbabilisticInstrument\n",
+    "In addition to the `Probabilistic` function, it is a function that can get the index of the operated gate. If the sum of the distribution is less than 1, or for some other reason no gate has acted, the number of elements in `gate_list` is saved in `classical_address`."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "2 [0.70710678+0.j 0.70710678+0.j 0.        +0.j 0.        +0.j]\n",
+      "0 [0.+0.j 1.+0.j 0.+0.j 0.+0.j]\n",
+      "1 [0.-0.j 0.+1.j 0.-0.j 0.+0.j]\n",
+      "1 [0.-0.j 0.+1.j 0.-0.j 0.+0.j]\n",
+      "2 [0.70710678+0.j 0.70710678+0.j 0.        +0.j 0.        +0.j]\n",
+      "0 [0.+0.j 1.+0.j 0.+0.j 0.+0.j]\n",
+      "1 [0.-0.j 0.+1.j 0.-0.j 0.+0.j]\n",
+      "1 [0.-0.j 0.+1.j 0.-0.j 0.+0.j]\n",
+      "2 [0.70710678+0.j 0.70710678+0.j 0.        +0.j 0.        +0.j]\n",
+      "2 [0.70710678+0.j 0.70710678+0.j 0.        +0.j 0.        +0.j]\n"
+     ]
+    }
+   ],
+   "source": [
+    "from qulacs import QuantumState\n",
+    "from qulacs.gate import X, Y, H, ProbabilisticInstrument\n",
+    "n = 2\n",
+    "state = QuantumState(n)\n",
+    "index = 0\n",
+    "x_gate = X(index)\n",
+    "y_gate = Y(index)\n",
+    "h_gate = H(index)\n",
+    "distribution = [0.25, 0.25, 0.25]\n",
+    "gate_list = [x_gate, y_gate, h_gate]\n",
+    "classical_address = 0\n",
+    "for _ in range(10):\n",
+    "  state = QuantumState(n)\n",
+    "  probabilistic_instrument_gate = ProbabilisticInstrument(distribution, gate_list, classical_address)\n",
+    "  probabilistic_instrument_gate.update_quantum_state(state)\n",
+    "  result = state.get_classical_value(classical_address)\n",
+    "  print(result, state.get_vector())\n"
+   ]
+  },
   {
    "attachments": {},
    "cell_type": "markdown",
@@ -3940,7 +3990,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": null,
    "metadata": {},
    "outputs": [
     {
@@ -4142,7 +4192,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": null,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -4342,7 +4392,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": null,
    "metadata": {},
    "outputs": [
     {
@@ -4402,7 +4452,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": null,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -4677,7 +4727,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.10.12"
+   "version": "3.11.4"
   },
   "vscode": {
    "interpreter": {