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Classical evolution and quantum generation in generalized gravity theories including string corrections and tachyon: Unified analyses by Hwang, J.; Noh, H. is a scholarly article available to read on EtoBox.

What is Classical evolution and quantum generation in generalized gravity theories including string corrections and tachyon: Unified analyses about?

We present cosmological perturbation theory based on generalized gravity theories including string theory correction terms and a tachyonic complication. The classical evolution as well as the quantum generation processes in these variety of gravity theories are presented in unified forms. These apply both to the scalar- and tensor-type perturbations. Analyses are made based on the curvature variable in two different gauge conditions often used in the literature in Einstein's gravity; these are the curvature variables in the comoving (or uniform-field) gauge and the zero-shear gauge. Applications to generalized slow-roll inflations and its consequent power spectra are derived in unified forms which include wide range of inflationary scenarios based on Einstein's gravity and others.

Author

Hwang, J.; Noh, H.

Published

2004

Language

EN