The fate of (phantom) dark energy universe with string curvature corrections
By M. Sami, A. Toporensky, Peter V. Tretjakov, S. Tsujikawa. 2005
173 citations recorded by the source corpus.
Abstract We study the evolution of (phantom) dark energy universe by taking into account the higher-order string corrections to Einstein–Hilbert action with fixed dilaton and modulus fields. While the presence of a cosmological constant gives stable de Sitter fixed points in the cases of heterotic and bosonic strings, no stable de Sitter solutions exist when a phantom fluid is present. We find that the universe can exhibit a Big Crunch singularity with a finite time for type II string, whereas it reaches a Big Rip singularity for heterotic and bosonic strings. Thus the fate of dark energy universe crucially depends upon the type of string theory under consideration.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/6d08f6e0056a82fbe13e5e1b8450646d6e8f8678
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Astronomy and Astrophysics
- S. Tsujikawa
- Antonio de Felice
- Pedro G. Ferreira
- T. Clifton
- C. Skordis
- Antonio Padilla
- Lavinia Heisenberg
- Tsutomu Kobayashi
In Nuclear and High Energy Physics
- Antonio de Felice
- S. Tsujikawa
- T. Clifton
- Pedro G. Ferreira
- C. Skordis
- Antonio Padilla
- Lavinia Heisenberg
- Emmanuel N. Saridakis
Citations in the corpus
- f(R) Theories (2010, background): “Theories with the more general Lagrangian density R/2+ f(R,P1, P2) have been studied by many people in connection to the dark energy problem [142, 110, 521, 420, 585, 64, 166, 543, 180].”
- Modified Gravity and Cosmology (2011, methodology): “The asymptotic behaviour of theories with quadratic corrections to the Einstein-Hilbert were studied, in the context of string cosmology, in [1090, 236, 1218].”