2022 Final - Qu 2d

2022 Final - Qu 2d

by Yago Pérez Pérez -
Number of replies: 1

If Eve is only capturing Bob's bits, how come Alice's also change. I thought the possible states would be:

(I |θ>)(I ⊗ <θ|) * |B_00>

What's the proof for the relation they mention?