Milestones
The checkpoints worth marking on a self-taught path. IBM Quantum badges, the first hardware run, each one dated and placed honestly on the record.
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 state, or one qubit of an entangled pair, does not. Density matrices, quantum channels, and what they show that vectors miss.
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09:38 Milestones Three quantum ways to diagonalise 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: what it would take for quantum to beat classical machine learning, and why it has not yet.
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17:16 Milestones I just earned my second IBM Quantum badge, and it says Advanced
My first IBM Quantum badge said Intermediate and it bent my brain. The second one says Advanced. It is about the algorithms that actually run on today's noisy quantum machines, and I am a self-taught builder who was not supposed to get here.
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15:13 Milestones I just earned my first IBM Quantum badge and I am not going back
There is a type of computer that holds every possible answer at once and only picks one when you force it to look. I found it a few weeks ago. I have not slept well since. First IBM Quantum badge earned. The chapter starts here.