Study of transport properties in rippled channels
  We study dynamical properties of bouncing particles inside of channels with sinusoidal walls. Taking as parameters the amplitude and the phases between the walls we study the transmitivity and its dependence on these parameters. We find an analytical approximation for transmitivity for small amplitudes, which is corroborated by numerical calculation. 
Ivan Herrera (1), Alberto Mendoza (2), Eduardo S. Tututi (2) ((1) IFM,   UMSNH, (2) FCFM, UMSNH)