  We use the Hirsch-Fye quantum Monte Carlo method to study the single magnetic
impurity problem in a two-dimensional electron gas with Rashba spin-orbit
coupling. We calculate the spin susceptibility for various values of spin-orbit
coupling, Hubbard interaction, and chemical potential. The Kondo temperatures
for different parameters are estimated by fitting the universal curves of spin
susceptibility. We find that the Kondo temperature is almost a linear function
of Rashba spin-orbit energy when the chemical potential is close to the edge of
the conduction band. When the chemical potential is far away from the band
edge, the Kondo temperature is independent of the spin-orbit coupling. These
results demonstrate that, for single impurity problem in this system, the most
important reason to change the Kondo temperature is the divergence of density
of states near the band edge, and the divergence is induced by the Rashba
spin-orbit coupling.
