Generalized sixth-order gravity and inflation
The authors consider sixth-order theories of gravity with Lagrangians containing the term R N Square Operator R, where N>1 is an integer. A conformal transformation gives a picture with two scalar fields in Einstein's theory. They find de Sitter and power law inflationary solutions. However,...
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
1993
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| In: |
Classical and quantum gravity
Year: 1993, Jahrgang: 10, Heft: 5, Pages: L43-L47 |
| ISSN: | 1361-6382 |
| DOI: | 10.1088/0264-9381/10/5/001 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1088/0264-9381/10/5/001 Verlag, Volltext: http://stacks.iop.org/0264-9381/10/i=5/a=001 
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| Verfasserangaben: | Luca Amendola, Alexandra Battaglia Mayer, Salvatore Capozziello, Stefan Gottlöber, Volker Müller, Franco Occhionero and Hans-Jurgen Schmidt |
| Zusammenfassung: | The authors consider sixth-order theories of gravity with Lagrangians containing the term R N Square Operator R, where N>1 is an integer. A conformal transformation gives a picture with two scalar fields in Einstein's theory. They find de Sitter and power law inflationary solutions. However, the theory has an unstable weak-field behaviour, because the linearized field equation is of lower order than the non-linear one. |
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| Beschreibung: | Gesehen am 21.11.2017 |
| Beschreibung: | Online Resource |
| ISSN: | 1361-6382 |
| DOI: | 10.1088/0264-9381/10/5/001 |