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Equation 4 · Part 1 · The Oldest Quantum-Gravity Experiment Is a Neutron Falling

Symbol m_g

mgm_{g}
mgm_{g}

What this part means

mgm_g 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

mgm_g 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

where εn\varepsilon_n is the n -th negative zero of the Airy function — 2.338, 4.088, 5.521, 6.787, and so on — and the mass has been split deliberately into a gravitational piece mgm_{g} , which sets how hard the potential pulls, and an inertial piece mim_{i} , which sets how the wavefunction spreads in response. Nesvizhevsky and collaborators’ 2005 refinement of the original measurement, using a position-sensitive track detector to scan the standing-wave density directly above…

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