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Hybrid Metric-Palat...
Hybrid Metric-Palatini Gravity
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- Capozziello, Salvatore (författare)
- Univ Napoli Federico I, Dipartimento Fis, I-80126 Naples, Italy.;Compl Univ Monte S Angelo, INFN Sez Napoli, Edificio G, I-80126 Naples, Italy.;INFN, Gran Sasso Sci Inst, I-67100 Laquila, Italy.
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- Harko, Tiberiu (författare)
- UCL, Dept Math, London WC1E 6BT, England.
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- Koivisto, Tomi S. (författare)
- Stockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,Stockholm Univ, SE-10691 Stockholm, Sweden.,Nordiska institutet för teoretisk fysik (Nordita)
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- Lobo, Francisco S. N. (författare)
- Univ Lisbon, Inst Astrofis Ciencias Espaco, Edificio C8,Campo Grande, PT-1749016 Lisbon, Portugal.
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- Olmo, Gonzalo J. (författare)
- CSIC Univ Valencia, Ctr Mixto Univ Valencia, Dept Fis Teor, Valencia, Spain.;CSIC Univ Valencia, Ctr Mixto Univ Valencia, IFIC, Valencia, Spain.
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Univ Napoli Federico I, Dipartimento Fis, I-80126 Naples, Italy;Compl Univ Monte S Angelo, INFN Sez Napoli, Edificio G, I-80126 Naples, Italy.;INFN, Gran Sasso Sci Inst, I-67100 Laquila, Italy. UCL, Dept Math, London WC1E 6BT, England. (creator_code:org_t)
- 2015-08-27
- 2015
- Engelska.
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Ingår i: Universe. - : MDPI. - 2218-1997. ; 1:2, s. 199-238
- Relaterad länk:
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https://www.mdpi.com...
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https://doi.org/10.3...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Recently, the phenomenology of f(R) gravity has been scrutinized. This scrutiny has been motivated by the possibility to account for the self-accelerated cosmic expansion without invoking dark energy sources. Besides, this kind of modified gravity is capable of addressing the dynamics of several self-gravitating systems alternatively to the presence of dark matter. It has been established that both metric and Palatini versions of these theories have interesting features but also manifest severe and different downsides. A hybrid combination of theories, containing elements from both these two formalisms, turns out to be also very successful accounting for the observed phenomenology and is able to avoid some drawbacks of the original approaches. This article reviews the formulation of this hybrid metric-Palatini approach and its main achievements in passing the local tests and in applications to astrophysical and cosmological scenarios, where it provides a unified approach to the problems of dark energy and dark matter.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- modified gravity
- late-time cosmic acceleration
- dark matter
- Solar System tests
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