TY - JOUR

T1 - Superstring-inspired supergravity as the universal source of inflation and quintessence

AU - Gates, S. James

AU - Ketov, Sergei V.

PY - 2009/4/6

Y1 - 2009/4/6

N2 - We prove (in superspace) the equivalence between the higher-derivative N = 1 supergravity, defined by a holomorphic function F of the chiral scalar curvature superfield, and the standard theory of a chiral scalar superfield with a chiral superpotential W, coupled to the (minimal) Poincaré supergravity in four spacetime dimensions. The relation between the holomorphic functions F and W is found. It can be used as the technical framework for the possible scenario unifying the early Universe inflation and the present Universe acceleration. We speculate on the possible origin of our model as the effective supergravity generated by quantum superstrings, with a dilaton-axion field as the leading field component of the chiral superfield.

AB - We prove (in superspace) the equivalence between the higher-derivative N = 1 supergravity, defined by a holomorphic function F of the chiral scalar curvature superfield, and the standard theory of a chiral scalar superfield with a chiral superpotential W, coupled to the (minimal) Poincaré supergravity in four spacetime dimensions. The relation between the holomorphic functions F and W is found. It can be used as the technical framework for the possible scenario unifying the early Universe inflation and the present Universe acceleration. We speculate on the possible origin of our model as the effective supergravity generated by quantum superstrings, with a dilaton-axion field as the leading field component of the chiral superfield.

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U2 - 10.1016/j.physletb.2009.03.005

DO - 10.1016/j.physletb.2009.03.005

M3 - Article

AN - SCOPUS:62349100550

VL - 674

SP - 59

EP - 63

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 1

ER -