Equation 120 · Part 1 · The Clock That Comes Back Wrong by Exactly Its Mass

Symbol phi

\phi\approx k_{\rm eff}\,g\,T^2

\phi

What this part means

phi 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

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

Full expressionSymbol phiArticle meaning

The passage around this formula

Here is the strongest objection this construction has to survive, and it is not hypothetical — it was argued in print for over a decade. In 2010, Müller, Peters, and Chu proposed that an ordinary light-pulse atom interferometer’s gravimeter phase already constitutes a measurement of the gravitational redshift at the atom’s Compton frequency m $c^2$ / $\hbar$ , reading the standard interferometer as an implicit realization of exactly the proper-time phase this paper formalizes [ 6 ] . Wolf, Blanchet, Bordé, Reynaud, Salomon, and Cohen-Tannoudji objected immediately: the standard three-pulse Mach–Zehnder gravimeter phase, computed by the ordinary classical-action method, is $\phi$ $\approx$ k_{ $\rm$ …

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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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