Equation 75 · Part 1 · The Bit Comes Back Before the Bearing

Symbol n

n

n

What this part means

n 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

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

Full expressionSymbol nArticle meaning

The passage around this formula

is exact [ 4 ] . Fixing m=2 (a single qubit) and letting n — the effective size of everything else the qubit could be entangled with — grow gives $\langle$ $S_{2,4}$ $\rangle$ = 0.5095 nats, $\langle$ $S_{2,16}$ $\rangle$ = 0.6465 nats, and $\langle$ $S_{2,64}$ $\rangle$ = 0.6814 nats, closing in on the ceiling $\ln$ 2 = 0.6931 nats. The residual gap to that ceiling shrinks by…

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Learn the underlying idea

A variable is a named place for a value. Its letter is a local label: x can mean position in one formula and a data point in another.

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Sources cited in the surrounding passage

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