Noether Identities and Gauge-Fixing the Action for Cosmological Perturbations
We propose and develop a general algorithm for finding the action for cosmological perturbations which rivals the conventional, gauge-invariant approach and can be applied to theories with more than one metric. We then apply it to a particular case of bigravity, focusing on the Eddington- inspired B...
| Príomhchruthaitheoirí: | , , , |
|---|---|
| Formáid: | Journal article |
| Foilsithe / Cruthaithe: |
2013
|