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@@ -176,10 +176,21 @@ class GraphState(object): |
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:param node: The name of the qubit to measure. |
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:param node: The name of the qubit to measure. |
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:param basis: The basis in which to measure. |
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:param basis: The basis in which to measure. |
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:type basis: :math:`\in` ``{"px", "py", "pz"}`` |
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:type basis: :math:`\in` ``{"px", "py", "pz"}`` |
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:param force: Measurements in quantum mechanics are probabilistic. If you want to force a particular outcome, use the ``force``. |
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:param force: Forces the measurement outcome. |
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:type force: boolean |
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:type force: boolean |
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:param detail: Provide detailed information |
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:param detail: Get detailed information. |
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:type detail: boolean |
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:type detail: boolean |
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Measurements in quantum mechanics are probabilistic. If you want to force a particular outcome :math:`\in\{0, 1\}`, use ``force``. |
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You can get more information by setting ``detail=True``, in which case ``measure()`` returns a dictionary with the following keys: |
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- ``outcome``: the measurement outcome. |
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- ``determinate``: indicates whether the outcome was determinate or random. For example, measuring :math:`|0\\rangle` in :math:`\sigma_x` always gives a deterministic outcome. ``determinate`` is overridden by ``force`` -- forced outcomes are always determinate. |
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- ``conjugated_basis``: The index of the measurement operator, rotated by the vertex operator of the measured node, i.e. :math:`U_\\text{vop} \sigma_m U_\\text{vop}^\dagger`. |
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- ``phase``: The phase of the cojugated basis, :math:`\pm 1`. |
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- ``node``: The name of the measured node. |
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- ``force``: The value of ``force``. |
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""" |
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""" |
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basis = clifford.by_name[basis] |
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basis = clifford.by_name[basis] |
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@@ -206,7 +217,7 @@ class GraphState(object): |
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result = not result |
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result = not result |
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if detail: |
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if detail: |
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return {"result": int(result), |
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return {"outcome": int(result), |
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"determinate": (determinate or force!=None), |
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"determinate": (determinate or force!=None), |
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"conjugated_basis": basis, |
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"conjugated_basis": basis, |
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"phase": phase, |
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"phase": phase, |
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