This lesson extends the description of quantum information presented in the previous lesson, including quantum states, measurements, and operations, to situations in which there are multiple systems. Such situations arise naturally in the context of information processing, both classical and quantum: large informationcarrying systems are typically constructed using collections of smaller systems, such as bits or qubits.

Additional materials for this course, including written text, Qiskit implementations, slides in pdf format, and a badging exam, can be found on IBM Quantum Learning by following this link: https://learning.quantum.ibm.com/cour...

Timecodes for lesson sections:

0:00 — Introduction
2:35 — Lesson overview
3:46 — Classical states
10:34 — Probabilistic states
16:44 — Tensor products of vectors
25:02 — Measurements of probabilistic states
32:00 — Operations on probabilistic states
36:08 — Tensor products of matrices
39:25 — Operations on probabilistic states (continued)
41:28 — Quantum states
48:38 — Measurements
56:29 — Unitary operations
1:04:37 — Conclusion

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