tutorial/001_1qubit_en.ipynb

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      "source": [
        "# Learn about 1qbit operation\n",
        "Here we start from the basic learing about quantum computing. If you haven't install blueqat SDK please install first."
      ]
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      "source": [
        "!pip install blueqat"
      ],
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      "outputs": []
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      "source": [
        "## Step1: Prepare basic circuit\n",
        "To calculate on the quantum computer, we just make a circuit.\n",
        "Let's import main component of blueqat and initialize the circuit first."
      ]
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      "source": [
        "from blueqat import Circuit\n",
        "\n",
        "#initialization of circuit\n",
        "Circuit()"
      ],
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      "outputs": []
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      "source": [
        "## Step2: Prepare quantum logic gate\n",
        "Next we put some quantum logic gate on the circuit\n",
        "Let's put quantum logic gate connecting with chain method after the initialized circuit. The .x[0] shows we apply Xgate on the 0th qubit."
      ]
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      "source": [
        "Circuit().x[0]"
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      "source": [
        "## Step3: Measurement and run\n",
        "To get the result of this circuit, we have to measure the result of the circuit. Let's put the measurement gate as .m[:] (: shows we apply measurement gate to all of qubits). And .run() with the number of shots we can get the final result."
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      "cell_type": "code",
      "source": [
        "Circuit().x[0].m[:].run(shots=1)"
      ],
      "execution_count": 4,
      "outputs": [
        {
          "output_type": "execute_result",
          "data": {
            "text/plain": [
              "Counter({'1': 1})"
            ]
          },
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          "execution_count": 4
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      "source": [
        "Now we get the result of '1' once. This is the result. Usually the circuit start from 0 and applying Xgate, this gate flip the bit of qubits 0 <-> 1, so you get 1 finally."
      ]
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      "source": [
        "## Advanced: State vector\n",
        "For more advanced use of the circuit, we can get the state amplitude (probability distribution) from the state vector. We can get the state vector directly from the simulator with just .run() the circuit without measurement."
      ]
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      "cell_type": "code",
      "source": [
        "Circuit().h[0].run()"
      ],
      "execution_count": 5,
      "outputs": [
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          "data": {
            "text/plain": [
              "array([0.70710678+0.j, 0.70710678+0.j])"
            ]
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        "This is the state vector."
      ]
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