Dynamics of tachyon field in spatially curved FRW universe
arXiv:1003.1870 · doi:10.1016/j.physletb.2010.02.071
Abstract
The dynamics of a tachyon field plus a barotropic fluid is investigated in spatially curved FRW universe. We perform a phase-plane analysis and obtain scaling solutions accompanying with a discussion on their stability. Furthermore, we construct the form of scalar potential which may give rise to stable solutions for spatially open and closed universe separately.
arXiv comment16 pages, 2 figures, version to be published in PLB
References in corpus (41)
- Dynamics of dark energy
- Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
- A Dynamical Solution to the Problem of a Small Cosmological Constant and Late-time Cosmic Acceleration
- Exponential potentials and cosmological scaling solutions
- Cosmology with a Primordial Scaling Field
- Quintessence arising from exponential potentials
- A classification of scalar field potentials with cosmological scaling solutions
- Cosmological Evolution of the Rolling Tachyon
- A New Cosmological Model of Quintessence and Dark Matter
- Cosmological scaling solutions of non-minimally coupled scalar fields
- Can the clustered dark matter and the smooth dark energy arise from the same scalar field ?
- Dilatonic ghost condensate as dark energy
- Phenomenology of a realistic accelerating universe using only Planck-scale physics
- Extended tachyon field, Chaplygin gas and solvable k-essence cosmologies
- What is needed of a tachyon if it is to be the dark energy?
- Coupled dark energy: Towards a general description of the dynamics
- A unified approach to scaling solutions in a general cosmological background
- Challenges for scaling cosmologies
- Applications of scalar attractor solutions to Cosmology
- General Scalar Fields as Quintessence
- The Dynamics of Multi-Scalar Field Cosmological Models and Assisted Inflation
- String-inspired cosmology: Late time transition from scaling matter era to dark energy universe caused by a Gauss-Bonnet coupling
- DBI-essence
- Phantom damping of matter perturbations
- Tachyon dark energy models: dynamics and constraints
- Scaling Solutions and reconstruction of Scalar Field Potentials
- General analytic formulae for attractor solutions of scalar-field dark energy models and their multi-field generalizations
- Scaling Solutions in Robertson-Walker Spacetimes
- Cosmological Scaling Solutions and Multiple Exponential Potentials
- The stability of cosmological scaling solutions
- On the potentials yielding cosmological scaling solutions
- Exact scaling solutions and fixed points for general scalar field
- Cosmological Scaling Solutions and Cross-coupling Exponential Potential
- Dynamics of a scalar field in Robertson-Walker spacetimes
- Dynamics of assisted quintessence
- Generalised cosmological scaling solutions
- Scaling solutions in scalar-tensor cosmologies
- Cosmological evolution of general scalar fields in a brane-world cosmology
- Affleck-Dine baryo/leptogenesis with a gauged U(1)(B-L)
- A Quintessentially Geometric Model
- Cosmological Scaling Solutions with Tachyon:Modified Gravity Model