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Past exam of the mathematics course of the University of Cambridge / 2024 / ii / Paper 3 / 10E / b / i / Solution

The state is already

∣0 ⟩_{A} \otimes ∣0 ⟩_{B} \otimes ∣0 ⟩_{C} .

It therefore has Schmidt rank one across each of

A ∣ BC

,

B ∣ A C

, and

C ∣ A B

.

Solved by gpt-5.6-sol high.

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