Fractional oscillator driven by a Gaussian noise

The time-dependent response is studied of a fractional oscillator driven by a Gaussian white noise. Applying the method of characteristic functionals combined with the technique of integral transforms, we derive explicit formulas for the variances of position and velocity and the asymptotic power spectrum of the oscillator. The effects of the order of fractional derivative on statistical characteristics of the oscillator are analyzed numerically.

[1]  F. W. Schneider,et al.  Characteristic functional approach to multiplicative fractal noise with application to environmental fluctuations in nonlinear chemical systems far from equilibrium , 2001 .

[2]  Manuel O. Cáceres The rigid rotator with Lévy noise , 2000 .

[3]  Aleksander Stanislavsky,et al.  Twist of fractional oscillations , 2005, 1111.5298.

[4]  Lévy noise with memory , 2003 .

[5]  B. Achar,et al.  Dynamics of the fractional oscillator , 2001 .

[6]  Functional characterization of generalized Langevin equations , 2004, cond-mat/0402311.

[7]  Vlad,et al.  Generating functional approach to space- and time-dependent colored noise. , 1994, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics.

[8]  B. Achar,et al.  Response characteristics of a fractional oscillator , 2002 .

[9]  X. Xie,et al.  Generalized Langevin equation with fractional Gaussian noise: subdiffusion within a single protein molecule. , 2004, Physical review letters.

[10]  Giorgio Turchetti,et al.  Diffusion and memory effects for stochastic processes and fractional Langevin equations , 2003 .

[11]  A. Tofighi,et al.  The intrinsic damping of the fractional oscillator , 2003 .

[12]  M. Cáceres Harmonic potential driven by long-range correlated noise. , 1999, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics.

[13]  B. Achar,et al.  Damping characteristics of a fractional oscillator , 2004 .