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Nonequilibrium Relaxation and Aging Scaling Properties of the Coulomb Glass and Bose Glass
We use Monte Carlo simulations in order to investigate the density of states and the two-time
density autocorrelation function for the two- and three-dimensional Coulomb glass as well
as the Bose glass phase of flux lines in type-II superconductors. We find a very fast forming
gap in the density of states and explore the dependence of temperature and filling fraction.
By studying two scaling methods, we find that the nonequilibrium relaxation properties can
be described sufficiently by a full-aging scaling analysis. The scaling exponents depend on
both temperature and filling fraction, and are thus non-universal. We look at the trends of
these exponents and found that as either the temperature decreases or the filling fraction
deviates more from half-filling, the exponents reflect slower relaxation kinetics. With two
separate interaction potentials, a comparison of relaxation rates and the gap in the density
of states is made.