Lorentz Invariance and the Cosmological Constant

Details Lorentz Invariance and the Cosmological Constant Lorentz Invariance and the Cosmological Constant

1997-06-04

arxiv.org/abs/gr-qc/9706012v1

Class.Quant.Grav. 14 (1997) 2785-2791

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages, plain Latex. This essay was selected for an honorable mention in the 1997 Gravity Research Foundation essay competio

Scientific paper

10.1088/0264-9381/14/10/007

Non-trivial solutions in string field theory may lead to the spontaneous breaking of Lorentz invariance and to new tensor-matter interactions. It is argued that requiring the contribution of the vacuum expectation values of Lorentz tensors to account for the vacuum energy up to the level that $\Omega_{0}^{\Lambda} = 0.5$ implies the new interactions range is $\lambda \sim 10^{-4} m$. These conjectured violations of the Lorentz symmetry are consistent with the most stringent experimental limits.

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