no-cloning theorem - South Central

Question

A standard proof of this result uses the fact that a unitary transformation on an inner product of states must have norm one or zero. For 10 points each:

[10m] Name this result that asserts that no unitary time-evolution operator can generate an arbitrary separable quantum state. This result implies that arbitrary quantum states cannot also be “teleported” or “broadcasted.”

ANSWER: no-cloning theorem [reject “no-clone theorem”]

[10e] The no-cloning theorem does not preclude states with this property, such as in teleportation that is [this property]-assisted. The EPR paradox concerns states with this property that are correlated despite being separated.

ANSWER: quantum entanglement [accept word forms like entangled]

[10h] The extent to which entangled states can “bypass” the no-cloning theorem is limited by this property, which bounds the degree of entanglement between multiple states. The CKW inequality governs this property.

ANSWER: monogamy [accept word forms like monogamous]

<MY, Physics>

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