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Equation 24 · The Statistical Mechanics of Irreversibility at Molecular Scale

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kBTln⁡2k_{\mathrm B}T\ln2

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kBk_{\mathrm B}

Symbol k_mathrm B

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

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TT

Symbol T

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

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subscript

subscript

The lower label selects a particular version, component, or indexed member of the quantity. For example, x₀ and xₜ can be values at different positions.

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What the article says around this equation

per erased bit [ 9 ] . This is a lower bound on an idealized erasure, not a claim that every transistor switch dissipates exactly kBk_{\mathrm B}Tln⁡\ln2 , nor that computation in general has one universal energy per operation.

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