Equation 17 · Part 1 · The Corner of the Equivalence Principle No Experiment Has Touched
Symbol hateta_coh
What this part means
hatetoh 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
hatetoh is a part of this expression. Its role is fixed by the surrounding article and by the operations shown in the formula.
Full expression→Symbol hateta_coh→Article meaning
The passage around this formula
…quantum, coherence-dependent piece to an Eötvös-ratio uncertainty in the low 10⁻⁹ range, roughly a hundredfold improvement over earlier internal-state tests [ 7 ] — this is the one bound in the record that reaches into rather than stopping at . Chris Overstreet and colleagues’ gravitational Aharonov-Bohm measurement, using a kilogram-scale source mass to imprint a phase on a single atom’s spatially superposed wavefunction, sits adjacent to , probing how the atom’s own…
Learn the underlying idea
A subscript is a label attached below a symbol. It often selects a time step, component, category, or member of a sequence.
Open the illustrated subscripts: which member of a family? guide →
See this notation across published equations →
Sources cited in the surrounding passage
- [5] Quantum Test of the Universality of Free Fall ↗
- [6] Quantum test of the Universality of Free Fall using rubidium and potassium ↗
- [4] Atom-Interferometric Test of the Equivalence Principle at the 10⁻¹² Level ↗
- [7] Quantum test of the equivalence principle for atoms in superpositions of internal energy eigenstates ↗
- [10] Observation of a gravitational Aharonov-Bohm effect ↗
These citations provide research context; check each source for the exact claim it supports.