Equation 21 · The Bit Comes Back Before the Bearing

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A

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within $\epsilon$ of perfect. Read the equation part by part below; each part has a contextual explanation and a link to its mathematical background.

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A

Symbol A

within $\epsilon$ of perfect.

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For the qubit, returned means: there exists a recovery channel $\mathcal R$ , built from quantum operations an agent holding both the full early radiation R and a further batch of radiation $C_t$ collected up to time t can actually perform, whose entanglement fidelity to the identity channel on A is within $\epsilon$ of perfect,

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Sources cited in the article section

[12] Statistical Distance and the Geometry of Quantum States ↗

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