Ratchetlike pulse controlling the Fermi deceleration and hyperacceleration

Details Ratchetlike pulse controlling the Fermi deceleration and hyperacceleration Ratchetlike pulse controlling the Fermi deceleration and hyperacceleration

2009-02-28

arxiv.org/abs/0903.0093v1

J. of Comp. Int. Sciences 1, 99 (2009).

Nonlinear Sciences

Chaotic Dynamics

6 pages and 10 figures

Scientific paper

Using an ac driven asymmetric pulse we show how the Fermi acceleration (deceleration) can be controlled. A {\it deformed} sawtooth (Ratchetlike) pulse representing the moving wall in the static Fermi-Ulam model is considered. The time integral from the pulse over one period of oscillation must be negative to obtain deceleration and positive to obtain hyperacceleration. We show that while the decelerated case is chaotic, for the hyperaccelerated case the Lyapunov exponents converge to zero. Numerical simulations indicate that the hyperaccelerated case is ergodic in velocity space. Switching between different pulse deformations we are able to control the particle acceleration. Results should be valid for any pulse for which the time integral can be manipulated between positive and negative values.

Affiliated with

Also associated with

No associations

Rating

Ratchetlike pulse controlling the Fermi deceleration and hyperacceleration does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Ratchetlike pulse controlling the Fermi deceleration and hyperacceleration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ratchetlike pulse controlling the Fermi deceleration and hyperacceleration will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-48822