Abstract
Loop quantum cosmology (LQC) strongly modifies the high-energy dynamics of Friedmann–Robertson–Walker models and removes the big-bang singularity. We investigate how LQC corrections affect the stability properties of the Einstein static universe. In general relativity, the Einstein static model with positive cosmological constant Λ is unstable to homogeneous perturbations. Using dynamical system methods, we show that LQC gravitational modifications can lead to an Einstein static model which is neutrally stable for a large enough positive value of Λ.
Original language | English |
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Pages (from-to) | 6243-6253 |
Number of pages | 11 |
Journal | Classical and Quantum Gravity |
Volume | 24 |
Issue number | 24 |
DOIs | |
Publication status | Published - 2007 |