Feasibility of probing dark energy with strong gravitational lensing systems - Fisher-Matrix approach

We assess the feasibility of probing dark energy with strong gravitational lensing systems. The capability of the method, which depends on the accurac y with which the lensing systems are modeled, is quantitatively investigate d using the Fisher-matrix formalism. We show that this method might place u seful constraints on the density parameter and the redshift evolution of th e dark energy by combining it with a constraint from supernova measurements . For this purpose., the lens potential needs to be precisely reconstructed . Ve determine the required quality of data. We also briefly discuss the op timal strategy to constrain the cosmological parameters using gravitational lensing systems.