GENERALIZED 6TH-ORDER GRAVITY AND INFLATION

被引：46

作者：

AMENDOLA, L

MAYER, AB

CAPOZZIELLO, S

GOTTLOBER, S

MULLER, V

OCCHIONERO, F

SCHMIDT, HJ

机构：

[1] ASTROPHYS INST,O-1591 POTSDAM,GERMANY

[2] UNIV NAPLES,DIPARTIMENTO SCI FIS,I-80125 NAPLES,ITALY

[3] UNIV POTSDAM,FACHBEREICH MATH,O-1570 POTSDAM,GERMANY

来源：

CLASSICAL AND QUANTUM GRAVITY | 1993年 / 10卷 / 05期

关键词：

D O I：

10.1088/0264-9381/10/5/001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We consider sixth-order theories of gravity with Lagrangians containing the term R(N) square R, where N > 1 is an integer. A conformal transformation gives a picture with two scalar fields in Einstein's theory. We 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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收藏

页码：L43 / L47

页数：5

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