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- Jimenez, Jose Beltran (author)
Modified Gravity with Vector Distortion and Cosmological Applications
- Article/chapterEnglish2017
Publisher, publication year, extent ...
- 2017-05-24
- MDPI AG,2017
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:kth-211410
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-211410URI
- https://doi.org/10.3390/universe3020047DOI
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-145232URI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
Classification
Notes
- QC 20170803
- We briefly review the basics of Weyl geometry and its natural extension by a general linear "distortion" of the metric connection by a vector field. A special class of the connections has torsion but retains the Weyl's semi-metricity condition. We present ghost-free gravitational theories in this geometrical setup and highlight their possible cosmological applications, such as new self-tuning solutions and new bouncing solutions found in the quadratic-curvature theories. The vector distortion can mimic the cosmological effects of dark matter.
Subject headings and genre
- NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi hsv//swe
- NATURAL SCIENCES Physical Sciences Astronomy, Astrophysics and Cosmology hsv//eng
- NATURVETENSKAP Fysik hsv//swe
- NATURAL SCIENCES Physical Sciences hsv//eng
- modified gravity
- Weyl geometry
- cosmology
Added entries (persons, corporate bodies, meetings, titles ...)
- Koivisto, Tomi S.Stockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,Nordiska institutet för teoretisk fysik (Nordita)(Swepub:su)tkoiv (author)
- KTHNordic Institute for Theoretical Physics NORDITA (creator_code:org_t)
Related titles
- In:Universe: MDPI AG3:22218-1997
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