New actions for modified gravity and supergravity

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Ketov, Sergey V.; Terada, T.: New actions for modified gravity and supergravity. In: Journal of High Energy Physics 2013 (2013), Nr. 7, 127. DOI: http://dx.doi.org/10.1007/JHEP07(2013)127

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Sum total of downloads: 150




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Abstract: 
We extend the f (R) gravity action by including a generic dependence upon the Weyl tensor, and further generalize it to supergravity by using the super-curvature R and super-Weyl W chiral superfields in N = 1 chiral curved superspace. We argue that our (super)gravitational actions are the meaningful extensions of the phenomenological f(R) gravity and its locally supersymmetric generalization towards their UV completion and their embedding into superstring theories. The proposed actions can be used for study of cosmological perturbations and gravitational instabilities due to a nonvanishing Weyl tensor in gravity and supergravity.
License of this version: CC BY 4.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2013
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 140 93.33%
2 image of flag of Greece Greece 2 1.33%
3 image of flag of China China 2 1.33%
4 image of flag of No geo information available No geo information available 1 0.67%
5 image of flag of Poland Poland 1 0.67%
6 image of flag of Malaysia Malaysia 1 0.67%
7 image of flag of Moldova, Republic of Moldova, Republic of 1 0.67%
8 image of flag of India India 1 0.67%
9 image of flag of Bulgaria Bulgaria 1 0.67%

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