Posts
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15:38 Milestones The density matrix: what the state vector misses
A pure state fits in a vector. A noisy or entangled one does not. Density matrices, quantum channels, and what they show that vectors miss
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09:38 Milestones Three quantum ways to diagonalize a giant matrix
A surprising number of hard problems are one eigenvalue problem on a matrix too big to build. Variational, Krylov, sample based, compared
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19:03 Milestones IBM Says I Understand Quantum Machine Learning Now
Quantum kernels, variational classifiers, and the honest part: when quantum beats classical machine learning, and when it does not.
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14:44 Quantum Computing The Python you actually need for quantum computing
Dictionaries for counts, just enough OOP to read Qiskit, and NumPy as the bridge. The thin slice that matters, nothing else.
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13:16 Quantum Computing A qubit is not a coin under a cup
The superposition myth, taken apart with math you can run. Not a hidden answer waiting to be read, but something stranger and far more precise.