Growth Rate in the Dynamical Dark Energy Models
  Dark Energy models with slowly-rolling cosmological scalar field provide a
popular alternative to the standard, time-independent cosmological constant
model. We study simultaneous evolution of background expansion and growth in
the scalar field model with the Ratra-Peebles self-interaction potential. We
use recent measurements of the linear growth rate and the baryon acoustic
oscillation peak positions to constrain the model parameter $\alpha$ that
describes the steepness of the scalar field potential.
