TY - JOUR
A2 - Leonel, Edson Denis
AU - Manchein, Cesar
AU - Beims, Marcus W.
PY - 2009
DA - 2009/09/14
TI - Dissipation Effects in the Ratchetlike Fermi Acceleration
SP - 513023
VL - 2009
AB - Ac-driven asymmetric pulses can be used to control the Fermi acceleration between three different motions, A: the accelerated mode, D: the decelerated mode, and H: the hyperaccelerated mode. In this paper we show that dissipation strongly affects the particles velocity, reducing the possibility for an accurate control of the dynamics. The saturation time, where the mean velocity starts to be constant due to dissipation, decays with a power law ~γ−β, where γ is the dissipation parameter and β is close to 1. The value of the saturated mean velocity also decays with a power law with exponent β~ 0.6 for case H, and β~ 0.3 for case A. In case D this velocity is almost constant for small dissipations.
SN - 1024-123X
UR - https://doi.org/10.1155/2009/513023
DO - 10.1155/2009/513023
JF - Mathematical Problems in Engineering
PB - Hindawi Publishing Corporation
KW -
ER -