Quantumania.js

on YouTube ↗35m

" summary

Explains how to simulate qubits with arrays and complex numbers, implement gates as matrices, and run Deutsch, Grover and Shor‑style algorithms in plain JavaScript; demonstrates a working JavaScript simulator that applies Hadamard and identity matrices, uses the tensor product to scale to n qubits, and performs measurement collapse. Key outcomes: Deutsch distinguishes constant vs balanced with the oracle inspected once (vs two classical calls), Grover amplifies a marked item in ~square root of N iterations, and a Shor-style period-finding step factors integers.

AI-written summary · about

" chapters (11)

1. 0:00Quantum computing intro
2. 1:09Quantum state and superposition
3. 3:34Quantum measurement and collapse
4. 7:45Quantum gates and matrices
5. 15:17Quantum algorithms overview
6. 19:15Deutsch algorithm explained
7. 21:43Deutsch-Jozsa algorithm
8. 23:50Grover's search algorithm
9. 26:21Prime factorization
10. 28:47Summary and limitations
11. 30:10Q&A on challenges

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