Challenging the Cosmological Constant

  title={Challenging the Cosmological Constant},
  author={N. Kaloper},
  journal={Physics Letters B},
Abstract We outline a dynamical dark energy scenario whose signatures may be simultaneously tested by astronomical observations and laboratory experiments. The dark energy is a field with slightly sub-gravitational couplings to matter, a logarithmic self-interaction potential with a scale tuned to ∼ 10 −3 eV , as is usual in quintessence models, and an effective mass m ϕ influenced by the environmental energy density. Its forces may be suppressed just below the current bounds by the chameleon… Expand

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