# Brany Liouville inflation

@article{Ellis2004BranyLI, title={Brany Liouville inflation}, author={John Ellis and Nikolaos E. Mavromatos and Dimitri V. Nanopoulos and Alexander S. Sakharov}, journal={New Journal of Physics}, year={2004}, volume={6}, pages={171 - 171} }

We present a specific model for cosmological inflation driven by the Liouville field in a non-critical supersymmetric string framework, in which the departure from criticality is due to open strings stretched between two moving Type-II 5-branes. We use WMAP and other data on fluctuations in the cosmic microwave background to fix the parameters of the model, such as the relative separation and velocity of the 5-branes, respecting also the constraints imposed by data on light propagation from…

## 26 Citations

### RELAXATION DARK ENERGY IN NON-CRITICAL STRING COSMOLOGIES AND ASTROPHYSICAL DATA

- Physics
- 2007

In this talk we review briefly the basic features of non-critical (dissipative) String Cosmologies, and we confront some of these models with supernova data. We pay particular attention to the…

### Dilaton and off-shell (non-critical string) effects in Boltzmann equation for species abundances

- Physics
- 2007

In this work we derive the modifications to the Boltzmann equation governing the cosmic evolution of relic abundances induced by dilaton dissipative-source and non-critical-string terms in…

### Liouville Cosmology at Zero and Finite Temperatures

- Physics
- 2006

We discuss cosmology in the context of Liouville strings, characterized by a central-charge deficit Q2, in which target time is identified with (the worldsheet zero mode of the) Liouville field:…

### Beyond the Standard Model of Cosmology

- Physics
- 2004

Recent cosmological observations of unprecented accuracy, by WMAP in particular, have established a ‘Standard Model’ of cosmology, just as LEP established the Standard Model of particle physics. Both…

### Supercriticality of a class of critical string cosmological solutions

- Physics, Mathematics
- 2008

For a class of Friedmann-Robertson-Walker-type string solutions with compact hyperbolic spatial slices formulated in the critical dimension, we find the world-sheet conformal field theory which…

### Non-perturbative formulation of non-critical string models

- Physics
- 2006

We apply to non-critical bosonic Liouville string models, characterized by a central-charge deficit Q, a new non-perturbative renormalization-group technique based on a functional method for…

### Starobinsky-like inflation and running vacuum in the context of Supergravity

- Physics
- 2015

We describe the primeval inflationary phase of the early Universe within a quantum field theoretical (QFT) framework that can be viewed as the effective action of vacuum decay in the early times.…

### An Alternative to Exact Renormalization and Cosmological Solutions in String Theory

- Physics
- 2005

In this work we review the application of a functional method, serving as an alternative to the Wilsonian Exact Renormalization approach, to stringy bosonic $\sigma$-models with metric and dilaton…

### A novel non-perturbative approach to String Cosmology

- Physics
- 2005

We develop an exact functional method applied to the bosonic string on a shperical world sheet, in graviton and dilaton backgrounds, consistent with conformal invariance. In this method, quantum…

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