CPTP maps

1 course · 1 tutorial

Courses

IBM Quantum

Understanding Quantum Information and Computation (IBM Learning)

John Watrous

John Watrous's four-course video lecture series covering quantum information theory, algorithms, error correction, and the general formulation of quantum operations. Graduate-level rigor, freely available.

Self-paced intermediate

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- advanced
- 35 min read
Quantum Channels and Kraus Operators: The Language of Quantum Noise

The formal framework for describing any quantum operation: CPTP maps, Kraus operators, the Choi matrix, and how common noise channels (depolarising, amplitude damping, phase damping) are expressed mathematically.
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