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// Workers AI · dad joke modeWhat did the Identity channel say? "I'm tuned to myself.

From Wikipedia, the free encyclopedia

In quantum information theory, the identity channel is a noise-free quantum channel. That is, the channel outputs exactly what was put in.[1]

The identity channel is commonly denoted as , or .

References

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  1. Wilde, Mark (2013), Quantum Information Theory, Cambridge University Press, p. 618, ISBN 9781107034259.