CPTP maps

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Understanding Quantum Information and Computation (IBM Learning)

John Watrous

40 hours intermediate

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- 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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