Understanding Quantum Information and Computation | Lesson 3 | Quantum Circuits

Lesson 3 of Unit 1 introduces the quantum circuit model, as well as some important mathematical concepts including inner products, orthogonality, and projections. A few fundamental limitations of quantum information, including the no-cloning theorem, are also discussed. 0:00 — Introduction 1:06 — Lesson overview 2:28 — Circuits 7:25 — Quantum circuits 18:27 — Inner products 24:15 — Orthogonality and orthonormality 32:35 — Projections 36:22 — Projective measurements 43:47 — Irrelevance of global phases 48:13 — No-cloning theorem 53:37 — Discriminating non-orthogonal states 59:59 — Conclusion Link to Series Overview: Link to Qiskit Textbook: #ibmquantum #learnquantum #qiskit