.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "gallery/pattern_from_circuit.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        :ref:`Go to the end <sphx_glr_download_gallery_pattern_from_circuit.py>`
        to download the full example code.

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_gallery_pattern_from_circuit.py:

From Circuit to Executable Pattern
=====================================

This example transpiles an MBQC-native circuit into GraphQOMB's compiler IRs,
then lowers them to an executable pattern and validates it by simulation.

.. GENERATED FROM PYTHON SOURCE LINES 9-20

.. code-block:: Python

    import numpy as np

    from graphqomb.circuit import MBQCCircuit, circuit2graph
    from graphqomb.pattern import print_pattern
    from graphqomb.qompiler import qompile
    from graphqomb.simulator import (
        CircuitSimulator,
        PatternSimulator,
        SimulatorBackend,
    )








.. GENERATED FROM PYTHON SOURCE LINES 21-22

generate circuit

.. GENERATED FROM PYTHON SOURCE LINES 22-31

.. code-block:: Python

    circuit = MBQCCircuit(3)
    circuit.j(0, 0.5 * np.pi)
    circuit.cz(0, 1)
    circuit.cz(0, 2)
    circuit.j(1, 0.75 * np.pi)
    circuit.j(2, 0.25 * np.pi)
    circuit.cz(0, 2)
    circuit.cz(1, 2)








.. GENERATED FROM PYTHON SOURCE LINES 32-33

Convert the circuit into GraphQOMB's compiler IRs.

.. GENERATED FROM PYTHON SOURCE LINES 33-46

.. code-block:: Python

    graphstate, xflow, scheduler = circuit2graph(circuit)
    print("graph nodes:", len(graphstate.physical_nodes))
    print("graph edges:", len(graphstate.physical_edges))
    print("feedforward entries:", len(xflow))
    print("scheduled slices:", scheduler.num_slices())

    # Lower the IRs into an executable pattern using the derived schedule.
    pattern = qompile(graphstate, xflow, scheduler=scheduler)
    print("pattern depth:", pattern.depth)
    print("pattern max space:", pattern.max_space)
    print("pattern active volume:", pattern.active_volume)
    print_pattern(pattern)





.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    graph nodes: 6
    graph edges: 7
    feedforward entries: 3
    scheduled slices: 3
    pattern depth: 3
    pattern max space: 5
    pattern active volume: 15
    N: node=3
    E: nodes=(2, 3)
    E: nodes=(0, 3)
    E: nodes=(1, 3)
    TICK
    N: node=4
    N: node=5
    E: nodes=(1, 4)
    E: nodes=(4, 5)
    E: nodes=(2, 5)
    E: nodes=(3, 5)
    M: node=0, plane=Plane.XY, angle=-1.5707963267948966
    TICK
    M: node=1, plane=Plane.XY, angle=-2.356194490192345
    M: node=2, plane=Plane.XY, angle=-0.7853981633974483
    TICK
    X: node=3
    Z: node=3
    X: node=4
    Z: node=4
    X: node=5
    Z: node=5
    0 more commands truncated. Change lim argument of print_pattern() to show more




.. GENERATED FROM PYTHON SOURCE LINES 47-48

simulate the pattern

.. GENERATED FROM PYTHON SOURCE LINES 48-60

.. code-block:: Python

    simulator = PatternSimulator(pattern, SimulatorBackend.StateVector)
    simulator.simulate()
    state = simulator.state
    statevec = state.state()

    # check by comparing the circuit simulator
    circ_simulator = CircuitSimulator(circuit, SimulatorBackend.StateVector)
    circ_simulator.simulate()
    circ_state = circ_simulator.state.state()
    inner_product = np.vdot(statevec, circ_state)
    print("inner product:", np.abs(inner_product))  # should be 1





.. rst-class:: sphx-glr-script-out

 .. code-block:: none

    inner product: 0.9999999999999993





.. rst-class:: sphx-glr-timing

   **Total running time of the script:** (0 minutes 0.004 seconds)


.. _sphx_glr_download_gallery_pattern_from_circuit.py:

.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-example

    .. container:: sphx-glr-download sphx-glr-download-jupyter

      :download:`Download Jupyter notebook: pattern_from_circuit.ipynb <pattern_from_circuit.ipynb>`

    .. container:: sphx-glr-download sphx-glr-download-python

      :download:`Download Python source code: pattern_from_circuit.py <pattern_from_circuit.py>`

    .. container:: sphx-glr-download sphx-glr-download-zip

      :download:`Download zipped: pattern_from_circuit.zip <pattern_from_circuit.zip>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_