An introduction to the Vainshtein mechanism

作者：Babichev Eugeny^*; Deffayet Cedric

来源：Classical and Quantum Gravity, 2013, 30(18): 184001.

DOI：10.1088/0264-9381/30/18/184001

We introduce the Vainshtein mechanism which plays a crucial role in massive gravities, as well as in related theories such as Galileons and their extensions. This mechanism, also known as k-mouflage, allows to hide via nonlinear effects-typically for source distances smaller than a so-called Vainshtein radius which depends on the source and on the theory considered-some degrees of freedom whose effects are then only left important at large distances, e.g. for cosmology. It is introduced here in nonlinear Fierz-Pauli theories (massive gravities), including the dRGT theories, in their decoupling limits, as well as in other models such as the DGP model or generalized Galileons. This presentation is self-contained, and before discussing the Vainshtein mechanism we introduce some useful results and concepts concerning massive gravity, such as the vDVZ discontinuity, the decoupling limits or the Boulware-Deser ghost.

• 出版日期2013-9-21
• 单位中国地震局