Chameleonic Theories: A Short Review

@article{Zanzi2015ChameleonicTA,
  title={Chameleonic Theories: A Short Review},
  author={Andrea Zanzi},
  journal={arXiv: General Relativity and Quantum Cosmology},
  year={2015}
}
  • A. Zanzi
  • Published 1 December 2015
  • Physics
  • arXiv: General Relativity and Quantum Cosmology
In the chameleon mechanism, a field (typically scalar) has a mass that depends on the matter density of the environment: the larger is the matter density, the larger is the mass of the chameleon. We briefly review some aspects of chameleonic theories. In particular, in a typical class of these theories, we discuss the lagrangian, the role of conformal transformations, the equation of motion and the thin-shell effect. We also discuss $f(R)$ theories and chameleonic quantum gravity. 

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