THE POSSIBILITY OF INFLATION IN ASYMPTOTICALLY SAFE GRAVITY

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We examine the inflationary modes in the cubic curvature theories in the context of asymptotically safe gravity. On the phase space of the Hubble parameter, there exists a critical point which corresponds to the slow-roll inflation in Einstein frame. Most of the e-foldings are attained around the critical point for each inflationary trajectories. If the coupling constants g(i) have the parametric relations generated as the power of the relative energy scale of inflation H-0 to the cutoff., a successful inflation with more than 60 e-foldings occurs near the critical point.
Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
Issue Date
2012-07
Language
English
Article Type
Article
Keywords

ORDER CURVATURE COUPLINGS; QUANTUM-GRAVITY; RENORMALIZATION; EQUATION

Citation

INTERNATIONAL JOURNAL OF MODERN PHYSICS D, v.21, no.7

ISSN
0218-2718
DOI
10.1142/S0218271812500629
URI
http://hdl.handle.net/10203/101867
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