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Equation 22 · Part 1 · The Bit Comes Back Before the Bearing

Symbol epsilon

ϵ\epsilon
ϵ\epsilon

What this part means

epsilon is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

Its job in the formula

epsilon is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.

The passage around this formula

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

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