## 7 Citations

### SUSTAINABILITY OF MULTI-FIELD INFLATION AND BOUND ON STRING SCALE

- Economics
- 2009

We study the effects of the interaction terms between the inflaton fields on the inflationary dynamics in multi-field models. With power law type potential and interactions, the total number of…

### Systematics of multi-field effects at the end of warped brane inflation

- Physics
- 2008

We investigate in the context of brane inflation the possibility of additional light scalar fields generating significant power spectrum and non-Gaussianities at the end of inflation affecting the…

### NON-GAUSSIANITIES AND PREHEATING FROM N-FLATION AND MAGNETOGENESIS VIA ROTATING COSMIC STRING LOOPS

- Physics
- 2008

In this thesis we examine multi-field inflationary models of the early universe and compute deviations from a Gaussian spectrum of primordial perturbations by extending the δN -formalism.…

### Lessons from the running of the tensor-to-scalar ratio

- Physics
- 2009

We derive a simple consistency relation from the running of the tensor-to-scalar ratio. This new relation is first order in the slow-roll approximation. While for single field models we can obtain…

### Entropy growth in the early universe, and the search for determining if gravity is classical or quantum , part II (Do physical laws/ physics parameter constants remain invariant from a prior universe, to the present universe?)

- Physics
- 2009

The invariance of physical law between a prior to a present universe is brought up, as a continuation of analyzing entropy in today's universe, and the relationship of entropy to information content…

### Evolution of the curvature perturbation during and after multi-field inflation

- 2009

### Evolution of the curvature perturbation during and after multi-field inflation

- Physics
- 2009

We study the evolution of the curvature perturbation on the super-horizon scales starting from the inflationary epoch until there remains only a single dynamical degree of freedom, presureless…

## References

SHOWING 1-10 OF 66 REFERENCES

### Scale-invariant perturbations from chaotic inflation

- Physics
- 2006

Vacuum fluctuations in the inflaton field driving chaotic inflation with a quadratic potential give a red spectrum of primordial density perturbations, n=0.97. However angular fluctuations in an…

### SUPER-HORIZON SCALE DYNAMICS OF MULTI-SCALAR INFLATION

- Physics
- 1998

We consider the dynamics of a multi-component scalar field on super-horizon scales in the context of inflationary cosmology. We present a method to solve the perturbation equations on super- horizon…

### Inflation models and observation

- Physics
- 2006

We consider small-field models, which invoke the usual framework for the effective field theory, and large-field models, which go beyond this. Present and future possibilities for discriminating…

### Generating the curvature perturbation at the end of inflation

- PhysicsPhysical review letters
- 2006

It is shown that a significant, and possibly dominant, contribution to the curvature perturbation is generated at the end of inflation through the vacuum fluctuations of fields, other than the inflaton, which are light during the inflationary trajectory and become heavy at the brane-antibrane annihilation.

### End of multifield inflation and the perturbation spectrum

- Physics
- 2007

We investigate the dynamics of inflation models driven by multiple, decoupled scalar fields and calculate the Hubble parameter and the amplitude of the lightest field at the end of inflation which…

### Fluctuations in the New Inflationary Universe

- Physics
- 1982

The spectrum of density perturbations is calculated in the new-inflationary-universe scenario. The main source is the quantum fluctuations of the Higgs field, which lead to fluctuations in the time…

### Inflationary prediction for primordial non-gaussianity.

- PhysicsPhysical review letters
- 2005

We extend the deltaN formalism so that it gives all of the stochastic properties of the primordial curvature perturbation zeta if the initial field perturbations are Gaussian. The calculation…