Kicked Bose-Einstein condensates:in search of exponential instability

Monteiro, T.S. and Rancon, A. and Ruostekoski, J. (2009) Kicked Bose-Einstein condensates:in search of exponential instability. In: Complex Phenomena in Nanoscale Systems. NATO Science for Peace and Security Series B: Physics and Biophysics . Springer, Dordrecht, pp. 109-119. ISBN 9789048131204

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Bose-Einstein condensates subject to short pulses (`kicks') from standing waves of light represent a nonlinear analogue of the well-known chaos paradigm, the quantum kicked rotor. We review briefly our current understanding of dynamicalor exponential instability in weakly kicked BECs. Previous studies of the onset of dynamical instability associated it with some form of classical chaos. We show it is due to parametric instability : resonant driving of certain collective modes. We map the zones of instability and calculate the Liapunov exponents.

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26 Feb 2018 11:48
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17 Sep 2023 04:01