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Malcolm Low6d ago • 8 min read
The No-Cloning Theorem in Quantum Computing: Why You Can't Copy a Qubit
Why an unknown quantum state cannot be copied: two short proofs (linearity and unitarity), the CNOT ...
#quantum#qiskit#cryptography#physics
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Malcolm Low6d ago • 2 min read
Deutsch's Algorithm in Quantum Computing: The 4 Cases
The four single-bit Boolean functions, the reversible oracle, the single-query Deutsch circuit, and ...
#quantum#qiskit#algorithms#computerscience
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Malcolm Low6d ago • 4 min read
Introduction to Quantum Computing: Qubits, Hadamard Gates, and Superposition
Qubits, the Hadamard gate, superposition, tensor products, and quantum interference derived from fir...
#quantum#qiskit#physics#computerscience
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Malcolm Low6d ago • 2 min read
Understanding Phase Kickback in Quantum Computing
How the target controls the controller: deriving phase kickback from the CNOT on |+> tensor |->, and...
#quantum#qiskit#physics#algorithms
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Malcolm Low6d ago • 4 min read
Deutsch Algorithm Revisited: Quantum vs Classical Implementation in Qiskit
A hands-on Qiskit comparison of the classical (2-query) and quantum (1-query) Deutsch algorithm, wit...
#quantum#qiskit#python#algorithms
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Malcolm Low6d ago • 3 min read
Exploring Quantum Entanglement: The CHSH Game Simulator
How the CHSH game exposes quantum entanglement: the classical 75% ceiling, the quantum ~85.4% bound,...
#quantum#entanglement#physics#qiskit
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