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Equation 112 · Part 1 · The Bit Comes Back Before the Bearing

Symbol Δ t_LG

ΔtLG(ϵ,δ)  ≡  tG(δ)−tL(ϵ),\Delta t_{LG}(\epsilon,\delta) \;\equiv\; t_G(\delta) - t_L(\epsilon),
ΔtLG\Delta t_{LG}

What this part means

Δ tLt_LG 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

Δ tLt_LG 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

…problem entirely, since the superselection rule stops restricting what the decoding party can effectively do, and again tGt_G →\to tLt_L [ 11 ] . Both limits are known theory, not new claims, and both are required checks on Δ\Delta tLGt_{LG} rather than optional flourishes: an object that failed to collapse to the established result in either limit would not be trustworthy in the regime where the two differ.

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A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.

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Sources cited in the surrounding passage

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