Matches in SemOpenAlex for { <https://semopenalex.org/work/W4385972838> ?p ?o ?g. }
- W4385972838 endingPage "046" @default.
- W4385972838 startingPage "046" @default.
- W4385972838 abstract "Abstract Symmetries play an important role in fundamental physics. In gravity and field theories, particular attention has been paid to Weyl (or conformal) symmetry. However, once the theory contains a scalar field, conformal transformations of the metric can be considered a subclass of a more general type of transformation, so-called disformal transformation. Here, we investigate the implications of pure disformal symmetry in the Universe. We derive the form of general disformal invariant tensors from which we build the most general disformal invariant action. We argue that, in cosmology, disformal symmetry amounts to require that the lapse function is fully replaced by a (time-like) scalar field at the level of the action. We then show that disformal symmetry is in general an exactly equivalent formulation of general mimetic gravity. Lastly, we go beyond mimetic gravity and find that a particular class of invariance leads to seemingly Ostrogradski-like (with higher derivatives) Lagrangians, which are nevertheless absent of Ostrogradski ghosts in a cosmological background, despite having an additional degree of freedom. We also propose an application of our formalism to find new invertible disformal transformations, where the coefficient involves higher derivatives and curvature, further expanding the theory space of scalar-tensor theories." @default.
- W4385972838 created "2023-08-19" @default.
- W4385972838 creator A5057884807 @default.
- W4385972838 creator A5073909515 @default.
- W4385972838 date "2023-08-01" @default.
- W4385972838 modified "2023-10-14" @default.
- W4385972838 title "Disformal symmetry in the Universe: mimetic gravity and beyond" @default.
- W4385972838 cites W1494017427 @default.
- W4385972838 cites W1494381321 @default.
- W4385972838 cites W1872375445 @default.
- W4385972838 cites W1974435699 @default.
- W4385972838 cites W2016101535 @default.
- W4385972838 cites W2021033533 @default.
- W4385972838 cites W2044119088 @default.
- W4385972838 cites W2062912482 @default.
- W4385972838 cites W2076141779 @default.
- W4385972838 cites W2082485482 @default.
- W4385972838 cites W2084669109 @default.
- W4385972838 cites W2087329120 @default.
- W4385972838 cites W2092963173 @default.
- W4385972838 cites W2119066732 @default.
- W4385972838 cites W2147630737 @default.
- W4385972838 cites W2148766317 @default.
- W4385972838 cites W2280843605 @default.
- W4385972838 cites W2287634194 @default.
- W4385972838 cites W2398470767 @default.
- W4385972838 cites W2513411918 @default.
- W4385972838 cites W2586092529 @default.
- W4385972838 cites W2594790198 @default.
- W4385972838 cites W2609132327 @default.
- W4385972838 cites W2610398007 @default.
- W4385972838 cites W2757147944 @default.
- W4385972838 cites W2760367870 @default.
- W4385972838 cites W2781551389 @default.
- W4385972838 cites W2793326874 @default.
- W4385972838 cites W2807486442 @default.
- W4385972838 cites W2884891801 @default.
- W4385972838 cites W2900909462 @default.
- W4385972838 cites W2903133063 @default.
- W4385972838 cites W2991376335 @default.
- W4385972838 cites W3018406284 @default.
- W4385972838 cites W3037501277 @default.
- W4385972838 cites W3042923199 @default.
- W4385972838 cites W3098007891 @default.
- W4385972838 cites W3098471966 @default.
- W4385972838 cites W3098493831 @default.
- W4385972838 cites W3099399608 @default.
- W4385972838 cites W3099669430 @default.
- W4385972838 cites W3099706941 @default.
- W4385972838 cites W3100032339 @default.
- W4385972838 cites W3100607401 @default.
- W4385972838 cites W3101120021 @default.
- W4385972838 cites W3101382810 @default.
- W4385972838 cites W3101454517 @default.
- W4385972838 cites W3101950814 @default.
- W4385972838 cites W3102182211 @default.
- W4385972838 cites W3102356892 @default.
- W4385972838 cites W3102369420 @default.
- W4385972838 cites W3102879326 @default.
- W4385972838 cites W3103597992 @default.
- W4385972838 cites W3103808464 @default.
- W4385972838 cites W3103821067 @default.
- W4385972838 cites W3104303094 @default.
- W4385972838 cites W3104374836 @default.
- W4385972838 cites W3105019281 @default.
- W4385972838 cites W3105220189 @default.
- W4385972838 cites W3105242785 @default.
- W4385972838 cites W3106306995 @default.
- W4385972838 cites W3120780899 @default.
- W4385972838 cites W3122271791 @default.
- W4385972838 cites W3123585062 @default.
- W4385972838 cites W3128754532 @default.
- W4385972838 cites W3202697437 @default.
- W4385972838 cites W3214980694 @default.
- W4385972838 cites W3217525833 @default.
- W4385972838 cites W4211141710 @default.
- W4385972838 cites W4225501142 @default.
- W4385972838 cites W4288079944 @default.
- W4385972838 cites W4308831555 @default.
- W4385972838 cites W4310141794 @default.
- W4385972838 cites W4313575221 @default.
- W4385972838 cites W4365459365 @default.
- W4385972838 cites W4383103844 @default.
- W4385972838 cites W4384822011 @default.
- W4385972838 cites W4385455008 @default.
- W4385972838 doi "https://doi.org/10.1088/1475-7516/2023/08/046" @default.
- W4385972838 hasPublicationYear "2023" @default.
- W4385972838 type Work @default.
- W4385972838 citedByCount "0" @default.
- W4385972838 crossrefType "journal-article" @default.
- W4385972838 hasAuthorship W4385972838A5057884807 @default.
- W4385972838 hasAuthorship W4385972838A5073909515 @default.
- W4385972838 hasBestOaLocation W43859728381 @default.
- W4385972838 hasConcept C110521144 @default.
- W4385972838 hasConcept C121332964 @default.
- W4385972838 hasConcept C124017977 @default.
- W4385972838 hasConcept C134306372 @default.
- W4385972838 hasConcept C147452769 @default.