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Add Clifford.from_matrix (Qiskit#9475)
* Add Clifford.from_matrix * Add tests * Add reno * Faster Clifford.from_matrix O(16^n)->O(4^n) * Add infinite recursion test case * Change to try append with definition first * Add u gate handling for speed * Improve implematation following review comments * Add Clifford.from_operator * Update reno * Lint * more accurate reno --------- Co-authored-by: Ikko Hamamura <[email protected]>
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releasenotes/notes/add-clifford-from-matrix-3184822cc559e0b7.yaml
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--- | ||
features: | ||
- | | ||
Added :meth:`.Clifford.from_matrix` and :meth:`.Clifford.from_operator` method that | ||
creates a ``Clifford`` object from its unitary matrix and operator representation respectively. | ||
- | | ||
The constructor of :class:`.Clifford` now can take any Clifford gate object up to 3 qubits | ||
as long it supports :meth:`to_matrix` method, | ||
including parameterized gates such as ``Rz(pi/2)``, which were not convertible before. |
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