Long-lasting Exponential Spreading in Periodically Driven Quantum Systems

Details Long-lasting Exponential Spreading in Periodically Driven Quantum Systems Long-lasting Exponential Spreading in Periodically Driven Quantum Systems

2012-01-12

arxiv.org/abs/1201.2493v1

Phys. Rev. Lett. 107, 234104 (2011)

Nonlinear Sciences

Chaotic Dynamics

4 figures, 6 pages (including supplementary material), published in the 2nd of December, 2011 issue of PRL

Scientific paper

10.1103/PhysRevLett.107.234104

Using a dynamical model relevant to cold-atom experiments, we show that
long-lasting exponential spreading of wave packets in momentum space is
possible. Numerical results are explained via a pseudo-classical map, both
qualitatively and quantitatively. Possible applications of our findings are
also briefly discussed.

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