TY - JOUR
T1 - Inflation by non-minimal coupling
AU - Park, Seong Chan
AU - Yamaguchi, Satoshi
PY - 2008/8/1
Y1 - 2008/8/1
N2 - Inflationary scenarios based on simple non-minimal coupling a2R and its generalizations are studied. Generalizing the form of non-minimal coupling to K()R with an arbitrary function K(), we show that the flat potential is still obtainable when V ()/K2() is asymptotically constant. Very interestingly, if the ratio of the dimensionless self-coupling constant (λ) of the inflaton field and the non-minimal coupling constant (a) is small, , the cosmological observables for general monomial cases (K∼a m, V∼λ2m) are in good agreement with recent observational data.
AB - Inflationary scenarios based on simple non-minimal coupling a2R and its generalizations are studied. Generalizing the form of non-minimal coupling to K()R with an arbitrary function K(), we show that the flat potential is still obtainable when V ()/K2() is asymptotically constant. Very interestingly, if the ratio of the dimensionless self-coupling constant (λ) of the inflaton field and the non-minimal coupling constant (a) is small, , the cosmological observables for general monomial cases (K∼a m, V∼λ2m) are in good agreement with recent observational data.
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U2 - 10.1088/1475-7516/2008/08/009
DO - 10.1088/1475-7516/2008/08/009
M3 - Article
AN - SCOPUS:56349096406
SN - 1475-7516
VL - 2008
JO - Journal of Cosmology and Astroparticle Physics
JF - Journal of Cosmology and Astroparticle Physics
IS - 8
M1 - 009
ER -