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4. Two boxes each produce a stream of qubits. Box A produces the qubits all in the state |+) = (10) + 1)). Box B randomly produces qubits in states |0) and |1), each with probability 1/2. We have one of the boxes, but it is unmarked and so we do not know which kind it is. Describe an experiment on the qubits that can tell the difference between box A and box B. Can you reliably tell the difference between the boxes by examining only one of the qubits?

4. Two boxes each produce a stream of qubits. Box A produces the qubits all in the state |+) = (10) + 1)). Box B randomly produces qubits in states |0) and |1), each with probability 1/2. We have one of the boxes, but it is unmarked and so we do not know which kind it is. Describe an experiment on the qubits that can tell the difference between box A and box B. Can you reliably tell the difference between the boxes by examining only one of the qubits?

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 32E
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4. Two boxes each produce a stream of qubits. Box A produces the qubits all in the state |+) = (10) + |1)). Box B randomly produces qubits in states |0) and |1) , each with probability 1/2. We have one of the boxes, but it is unmarked and so we do not know which kind it is. Describe an experiment on the qubits that can tell the difference between box A and box B. Can you reliably tell the difference between the boxes by examining only one of the qubits?
Transcribed Image Text:4. Two boxes each produce a stream of qubits. Box A produces the qubits all in the state |+) = (10) + |1)). Box B randomly produces qubits in states |0) and |1) , each with probability 1/2. We have one of the boxes, but it is unmarked and so we do not know which kind it is. Describe an experiment on the qubits that can tell the difference between box A and box B. Can you reliably tell the difference between the boxes by examining only one of the qubits?
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