Power-law behavior in the power spectrum induced by Brownian motion of a domain wall.

@article{Takesue2003PowerlawBI,
  title={Power-law behavior in the power spectrum induced by Brownian motion of a domain wall.},
  author={Shinji Takesue and Tetsuya Mitsudo and Hisao Hayakawa},
  journal={Physical review. E, Statistical, nonlinear, and soft matter physics},
  year={2003},
  volume={68 1 Pt 2},
  pages={015103}
}
We show that Brownian motion of a one-dimensional domain wall in a large but finite system yields a omega(-3/2) power spectrum. This is successfully applied to the totally asymmetric simple exclusion process with open boundaries. An excellent agreement between our theory and numerical results is obtained in a frequency range where the domain wall motion… CONTINUE READING