• Corpus ID: 118223326

Scalar-tensor theories and cosmology

  title={Scalar-tensor theories and cosmology},
  author={Gilles Esposito-Far{\`e}se},
  journal={arXiv: General Relativity and Quantum Cosmology},
Scalar-tensor theories are the best motivated alternatives to general relativity and provide a mathematically consistent framework to test the various observable predictions. They can involve three functions of the scalar field: (i) a potential (as in "quintessence" models), (ii) a matter-scalar coupling function (as in "extended quintessence", where it may also be rewritten as a nonminimal coupling of the scalar field to the scalar curvature), and (iii) a coupling function of the scalar field… 
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