Question

How to calculate fidelity of a specific quantum channel?

Answer 1

Hey mate ^_^

The action of η on the pure states is enough because the density operator is a convex combination of pure state projection operators and because η is linear, so all the contributions mixed states add to the average of <η> end up evening out....

#Be Brainly❤️

Answer 2

Hey mate.....❤❤❤

here's Ur answer❤❤

Ques】 How to calculate fidelity of a specific quantum channel?

Ans]】 The action of pure states is enough bcz the density operator is a convex combination of pure states which is linear...

Hope it Helps

______❣❣❣_______

Be brainly⭐