Pure-connection gravity and anisotropic singularities
In four space-time dimensions, there exists a special infinite-parameter family of chiral modified gravity theories. They are most properly described by a connection field, with space-time metric being a secondary and derived concept. All these theories have the same number of degrees of freedom as...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Published: |
MDPI
2018
|
| Subjects: | |
| Online Access: | https://eprints.nottingham.ac.uk/50827/ |
| _version_ | 1848798350731640832 |
|---|---|
| author | Krasnov, Kirill Shtanov, Yuri |
| author_facet | Krasnov, Kirill Shtanov, Yuri |
| author_sort | Krasnov, Kirill |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | In four space-time dimensions, there exists a special infinite-parameter family of chiral modified gravity theories. They are most properly described by a connection field, with space-time metric being a secondary and derived concept. All these theories have the same number of degrees of freedom as general relativity, which is the only parity-invariant member of this family. Modifications of general relativity can be arranged so as to become important in regions with large curvature. In this paper, we review how a certain simple modification of this sort can resolve the Schwarzschild black-hole and Kasner anisotropic singularities of general relativity. In the corresponding solutions, the fundamental connection field is regular in space-time. |
| first_indexed | 2025-11-14T20:18:23Z |
| format | Article |
| id | nottingham-50827 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:18:23Z |
| publishDate | 2018 |
| publisher | MDPI |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-508272020-05-04T19:25:52Z https://eprints.nottingham.ac.uk/50827/ Pure-connection gravity and anisotropic singularities Krasnov, Kirill Shtanov, Yuri In four space-time dimensions, there exists a special infinite-parameter family of chiral modified gravity theories. They are most properly described by a connection field, with space-time metric being a secondary and derived concept. All these theories have the same number of degrees of freedom as general relativity, which is the only parity-invariant member of this family. Modifications of general relativity can be arranged so as to become important in regions with large curvature. In this paper, we review how a certain simple modification of this sort can resolve the Schwarzschild black-hole and Kasner anisotropic singularities of general relativity. In the corresponding solutions, the fundamental connection field is regular in space-time. MDPI 2018-01-04 Article PeerReviewed Krasnov, Kirill and Shtanov, Yuri (2018) Pure-connection gravity and anisotropic singularities. Universe, 4 (1). 12/1-12/11. ISSN 2218-1997 pure-connection gravity; modified gravity; anisotropic singularities http://www.mdpi.com/2218-1997/4/1/12 doi:10.3390/universe4010012 doi:10.3390/universe4010012 |
| spellingShingle | pure-connection gravity; modified gravity; anisotropic singularities Krasnov, Kirill Shtanov, Yuri Pure-connection gravity and anisotropic singularities |
| title | Pure-connection gravity and anisotropic singularities |
| title_full | Pure-connection gravity and anisotropic singularities |
| title_fullStr | Pure-connection gravity and anisotropic singularities |
| title_full_unstemmed | Pure-connection gravity and anisotropic singularities |
| title_short | Pure-connection gravity and anisotropic singularities |
| title_sort | pure-connection gravity and anisotropic singularities |
| topic | pure-connection gravity; modified gravity; anisotropic singularities |
| url | https://eprints.nottingham.ac.uk/50827/ https://eprints.nottingham.ac.uk/50827/ https://eprints.nottingham.ac.uk/50827/ |