Updated: I added the aha-chapter that I was missing.

"Quantum computers try all possibilities in parallel" is the popular line — and it's dangerously misleading. A measurement collapses everything to one random answer, so "parallel" on its own is useless.

The actual move: a quantum algorithm is ONE global linear transformation on a 2^n-amplitude vector, designed so wrong answers destructively cancel and the right one amplifies. Classical searches. Quantum shapes.

Walkthrough with a Grover-style bar chart in four snapshots, plus the full pipeline: superconducting oscillator → Josephson junction → Bell state → amplitude amplification → Shor / Grover / simulation.

🔗 https://ki-mathias.de/en/quantum-computing.html
🎥 https://youtu.be/iMaqNfA0Gs0 (9:14, HD)
📦 Qiskit notebooks: https://github.com/pmmathias/quantum-computing

#quantumcomputing #qiskit #qubit #interference #grover #blochsphere #physics #education

L'informatique quantique, basée sur la contre-intuitive mécanique quantique, diffère profondément de l'informatique classique.

Tania Belabbas, de l'Institut quantique - Université de Sherbrooke, fait appel aux mathématiques pour nous expliquer le fameux qubit.

https://accromath.uqam.ca/2025/10/de-la-science-fiction-a-linformatique-les-mathematiques-pour-expliquer-les-qubits/

#QuantumComputing #qubit #BlochSphere #SciComm

Seems like you cannot just modelize an N Qbit quantum system with an array of N Qbit... Entanglement makes things much more complicated.

I have to redesign my quantum playground from scratch to handle several qbits 🙁

Too bad, I just added add/remove QGate buttons.

If you yhink you understand quantum mechanics, you have probably missed something.

#quantum #quantumcomputing #qbit #BlochSphere

I've spent way too much time implementing reflexion and refraction on my #BlochSphere viewer.

I should work on multi #qbits support instead, but.. you know... #raytracing is cool 😎

Play here: https://kissyagni.com/the-bloch-sphere/

#threejs #gpuprogramming

Big refact on my #BlochSphere viewer project. I've ported the js code to #angular and moved it into its own repo: https://codeberg.org/KissYagni/quantum-playground.

I plan to not only show a single QBit, but build more complex circuit. And to do so, I will need more advanced Ux than 2 slider stuck on the left.

To play with it: https://kissyagni.com/the-bloch-sphere

#quantum_computing #quantum

Add Rotate X/Y/Z QGates to my #BlochSphere viewer

https://kissyagni.com/the-bloch-sphere/index.html

#quantumcomputing

Small after lunch update. I've added soft shadows to my #Blochsphere

No optim for now. I launch 64 rays in random directions inside a cone toward light direction and accumulate attenuation when a ray hit something.

https://kissyagni.com/the-bloch-sphere/index.html

#raytracing #threejs #glsl

My #Blochsphere slowly start to be something. I can now represent #Quantum gate effect on a #Qbit.

PauliZ is easy to understand, PauliX and PauliY , Mmm..... Ok, but Hadamard gate is more tricky.

You can play with here: https://kissyagni.com/the-bloch-sphere/index.html

Code available here: https://codeberg.org/KissYagni/KissYagni_blog/src/branch/master/content/the-bloch-sphere

#threejs #glsl #raycasting #quantum_computing

I continue my #raytraced #blochsphere in #threejs .

Add poor man's phong shading and per primitive color. Also add some labels for main #qbits axes.