# QUINTESSENCE AND THE REST OF THE WORLD : SUPPRESSING LONG-RANGE INTERACTIONS

@article{Carroll1998QUINTESSENCEAT, title={QUINTESSENCE AND THE REST OF THE WORLD : SUPPRESSING LONG-RANGE INTERACTIONS}, author={S. Carroll}, journal={Physical Review Letters}, year={1998}, volume={81}, pages={3067-3070} }

A nearly-massless, slowly-rolling scalar field $\phi$ may provide most of the energy density of the current universe. One potential difficulty with this idea is that couplings to ordinary matter, even if suppressed by the Planck scale, should lead to observable long-range forces and time dependence of the constants of nature. I explore the possibility that an approximate global symmetry serves to suppress such couplings even further. Such a symmetry would allow a coupling of $\phi$ to the…

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