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hep-th2002
Time-reversal violation as loop-antiloop symmetry breaking: the Bessel equation, group contraction and dissipation
Eleonora Alfinito, Giuseppe Vitiello
We show that the Bessel equation can be cast, by means of suitable transformations, into a system of two damped/amplified parametric oscillator equations. The relation with the gro…
cond-mat.stat-mech2002
Linear and nonlinear regime of a Random Resistor Network under biased percolation
C. Pennetta, E. Alfinito, L. Reggiani
We investigate the steady state of a two-dimensional random resistor network subjected to two competing biased percolations as a function of the bias strength. The properties of th…