What Is Superposition? Amplitudes, Phase and the Bloch Sphere
Superposition means a qubit's state is described by two amplitudes. Their squares give the odds of reading 0 or 1, and what a Hadamard…
The Quantum Software Stack Is a Real-Time Systems Problem
There is no quantum operating system yet. Reading the stack by deadline rather than by layer shows why, and shows where the engineering work…
Four Quantum Frameworks, One Bell Pair: A Practical Comparison for Developers
The same two-qubit circuit written in Qiskit, Cirq, PennyLane and Q#, then a decision path based on what you actually intend to build.
QAOA for People Who Aren’t Physicists
QAOA is a loop: a quantum circuit proposes candidate answers, a classical optimizer tunes the circuit, repeat. Here is the mechanism, without the physics…