Quantum Fourier transform
The Quantum Fourier Transform rewrites quantum information in a way that exposes hidden repeating patterns, and it is the critical engine inside many of the most powerful quantum algorithms known t...
Quantum algorithm catalog
What quantum algorithms actually do, explained twice: once in plain language for the curious, once in depth for the technical reader, each with a runnable Qiskit example and references to the original papers.
Indexed after Stephen Jordan's Quantum Algorithm Zoo, whose categories and speedup classification this catalog follows. All explanations are written for this site and reviewed by an editor; every entry cites the primary literature.