Quantum Computing, Quantum Information.
(Trace=1). 1.1 Choi–Kraus Theorem Moving on to the highlight of this section: the Choi–Kraus Theorem. The Choi Operator is defined as For those interested in the proof of the Choi–Kraus Theorem, you can refer to the textbook; it’s quite intuitive. 1.2 Serial Concatenation of Quantum Channels The