output
19982025
most citedDynamics of dark energy

6.3k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing 2006 · hep-thShow all

5 papers · 2 filters

hep-th2006★ 46 cited

Realizing Scale-invariant Density Perturbations in Low-energy Effective String Theory

Zong-Kuan Guo, Nobuyoshi Ohta, Shinji Tsujikawa

We discuss the realization of inflation and resulting cosmological perturbations in the low-energy effective string theory. In order to obtain nearly scale-invariant spectra of den…

hep-th2006★ 122 cited

String-inspired cosmology: Late time transition from scaling matter era to dark energy universe caused by a Gauss-Bonnet coupling

Shinji Tsujikawa, M. Sami

The Gauss-Bonnet (GB) curvature invariant coupled to a scalar field can lead to an exit from a scaling matter-dominated epoch to a late-time accelerated expansion, which is att…

hep-th2006★ 6.3k cited

Dynamics of dark energy

Edmund J. Copeland, M. Sami, Shinji Tsujikawa

In this paper we review in detail a number of approaches that have been adopted to try and explain the remarkable observation of our accelerating Universe. In particular we discuss…

hep-th2006★ 93 cited

General analytic formulae for attractor solutions of scalar-field dark energy models and their multi-field generalizations

Shinji Tsujikawa

We study general properties of attractors for scalar-field dark energy scenarios which possess cosmological scaling solutions. In all such models there exists a scalar-field domina…

hep-th2006★ 29 cited

Inflation from D3-brane motion in the background of D5-branes

Sudhakar Panda, M. Sami, Shinji Tsujikawa +1

We study inflation arising from the motion of a BPS D3-brane in the background of a stack of k parallel D5-branes. There are two scalar fields in this set up-- (i) the radion field…