Alternative Introduction to Quantum Computers
Talkat Open Source Summit Europe 2023 · on Wednesday, 2023-09-20· at 14:40· Room 0E-2 (Floor 0), Abandoibarra Etorb., 4, 48011 Bilbao, Bizkaia, Spain·
summary
A programmer-focused primer that explains qubits as analog sliders, shows X, H and CNOT gates implemented with Qiskit, and demonstrates running circuits on AWS Braket (sv1 simulator and a real device) where jobs queue for hours and hardware returns noisy histograms. Key claims: entanglement gives 2^n amplitude variables (four qubits → 16 amplitudes, ten → ~1,000), amplitudes square to probabilities, and measurement is the bottleneck. Examples include circuit-to-matrix equivalence, reversible-only operations, and visible real-device errors in the returned counts.
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chapters (9)
- 0:00Alternative intro to quantum computers
- 7:28Classical bits to quantum qubits
- 12:29Power and limits of qubit registers
- 18:22Quantum gates and non-intuitive nature
- 24:22Hadamard and CNOT gates
- 29:26Quantum code like assembly
- 31:57Quantum computers today and challenges
- 35:49AWS Braket circuit run
- 41:47Future of quantum computing
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