Quantum Gates
The gates that move a qubit. X, H, Z and the rotations are matrices you can multiply yourself, plus the relative phase they shift without showing it.
Posts
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10:44 Quantum Computing Relative phase: the invisible engine of quantum
Probabilities cannot see it, the next gate can. Global vs relative phase, and the experiment that makes the invisible visible.
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12:45 Quantum Computing Quantum gates are just matrices you can run by hand
X, H, Z and the rotations: applying a gate is multiplying a matrix by a vector. Literally. Worked by hand, then checked in NumPy.