# Cosmic acceleration and M theory cosmology

@inproceedings{Neupane2004CosmicAA, title={Cosmic acceleration and M theory cosmology}, author={Ishwaree P. Neupane}, year={2004} }

Ishwaree P. NeupaneDepartment of Physics, National Taiwan University, 106 Taipei, TaiwanCentral Department of Physics, Tribhuvan University, Kathmandu, Nepalishwaree@phys.ntu.edu.twReceived (24 January 2004)Published (Day Month Year)This is a short overview of spatially ﬂat (or open) four-dimensional accelerating cosmolo-gies for some simple exponential potentials obtained by string or M theory compactiﬁ-cation on some non-trivial curved spaces, which may lead to some striking results, e.g.,the…

## 11 Citations

### xxxxxxx EFI-04-07 Mirage resolution of cosmological singularities

- Physics
- 2004

We study time–dependent backgrounds in the low energy regimes of string theories. In particular the emphasis is on the general study of exotic phenomena such as positive acceleration and…

### Mirage resolution of cosmological singularities

- Physics
- 2004

We study time-dependent backgrounds in the low energy regimes of string theories. In particular the emphasis is on the general study of exotic phenomena such as positive acceleration and…

### Phase space analysis of quintessence cosmologies with a double exponential potential

- Physics, Mathematics
- 2004

We use phase space methods to investigate closed, flat, and open Friedmann–Robertson–Walker cosmologies with a scalar potential given by the sum of two exponential terms. The form of the potential is…

### Gauss–Bonnet cosmologies: crossing the phantom divide and the transition from matter dominance to dark energy

- Physics
- 2007

Dark energy cosmologies with an equation of state parameter w less than −1 are often found to violate the null energy condition and show unstable behaviour. A solution to this problem may require the…

### PARAMETERIZING AND MEASURING DARK ENERGY TRAJECTORIES FROM LATE INFLATONS

- Physics
- 2010

Bulk dark energy (DE) properties are determined by the redshift evolution of its pressure-to-density ratio, wde(z). An experimental goal is to decide if the DE is dynamical, as in the quintessence…

### Inflation and quintessence: theoretical approach of cosmological reconstruction

- Physics
- 2008

In the first part of this paper, we outline the construction of an inflationary cosmology in the framework where inflation is described by a universally evolving scalar field ϕ with potential V (ϕ).…

### The old and new universe in the era of precision cosmology

- Physics
- 2010

These are privileged times to be a cosmologist. Recent years have witnessed unprecedented progress in observational and computational techniques and we now are able to quantify cosmological…

### Intermediate Inflation or Late Time Acceleration

- Physics
- 2007

The expansion rate of “intermediate inflation” lies between the exponential and power law expansion but
corresponding accelerated expansion does not start at the onset of cosmological evolution.…

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