On the most efficient unitary transformation for programming quantum channels
classification
🪐 quant-ph
keywords
ancillasystemefficientproblemprogrammingtransformationunitaryaddress
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We address the problem of finding the optimal joint unitary transformation on system + ancilla which is the most efficient in programming any desired channel on the system by changing the state of the ancilla. We present a solution to the problem for dim(H)=2 for both system and ancilla.
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