Abstract
We show that Brownian motion of a one-dimensional domain wall in a large but finite system yields a 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 dominates and the discreteness of the system is not effective.
- Received 17 March 2003
DOI:https://doi.org/10.1103/PhysRevE.68.015103
©2003 American Physical Society