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Equation 74 · Part 1 · A Horizon Is a Toll Booth, Not a Loophole

Symbol T_rm loc

TlocT_{\rm loc}
TlocT_{\rm loc}

What this part means

TrT_rm loc 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

TrT_rm loc 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

​ [ 11 ] . Setting TlocT_{\rm loc} equal to a demanding but realistic dilution-refrigerator base temperature of 10\,mK\mathrm{mK} and solving for the required clearance gives Δ\Delta r≈\approx2.8×\times10^{-14}\,m\mathrm m — a few nuclear radii from the horizon. For a supermassive hole, in other words, the ambient Hawking bath…

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