Quantization of four-form fluxes and dynamical neutralization of the cosmological constant

@article{Bousso2000QuantizationOF,
title={Quantization of four-form fluxes and dynamical neutralization of the cosmological constant},
author={R. Bousso and J. Polchinski},
journal={Journal of High Energy Physics},
year={2000},
volume={2000},
pages={006-006}
}

A four-form gauge flux makes a variable contribution to the cosmological constant. This has often been assumed to take continuous values, but we argue that it has a generalized Dirac quantization condition. For a single flux the steps are much larger than the observational limit, but we show that with multiple fluxes the allowed values can form a sufficiently dense `discretuum'. Multiple fluxes generally arise in M-theory compactifications on manifolds with non-trivial three-cycles. In theories… Expand