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arXiv · hep-th/9709157

Duality and the cosmological constant

Hadi Salehi
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Abstract

A dynamical theory is studied in which a scalar field $ϕ$ in Einstein- Minkowski space is coupled to the four-velocity $N_μ$ of a preferred inertial observer in that space. As a consistent requirement on this coupling we study a principle of duality invariance of the dynamical mass- term of $ϕ$ at some universal length in the small-distance regime. In the large-distance regime duality breaking can be introduced by giving a back- ground value to $ϕ$ and a back-ground direction to $N_μ$. It is shown that, in an appropriate approximation, duality breaking can be related to the emergence of a characteristic phase in which the condensation of the ground state allows massive excitations with a characteristic scale of squared mass which agrees with present observational bound for the cosmological constant.

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Hadi Salehi. 1997-09-21. Duality and the cosmological constant. https://doi.org/10.1007/bf02435959

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