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arXiv · 1804.00457

Dynamics of interacting bosons in a double well potential-harmonic versus chirp modulation

Sunayana Dutta·Pankaj Kumar Mishra·Budhaditya Chatterjee·Saurabh Basu
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Abstract

We present effects of an external driving on the tunneling dynamics of interacting bosons confined in a double well potential. At large values of a periodic driving potential, the dynamics become chaotic, with a distinct difference between tuning of the amplitude or the phase of the driving term with regard to the route leading to chaos. For example, we find that a controlled increase in the amplitude of the driving term with a fixed phase leads to quasiperiodic route to chaos. While tuning of the frequency with a fixed (large) amplitude leads to a crisis induced intermittency route to a chaotic dynamics, where the system intermittently visits different attractors in the phase space. Surprisingly, a chirp frequency superposed on a harmonic signal suppresses the chaotic motion, thereby yielding an orderly dynamics, pretty similar to a (damped) Rabi oscillation.

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Sunayana Dutta, Pankaj Kumar Mishra, Budhaditya Chatterjee, Saurabh Basu. 2018-04-02. Dynamics of interacting bosons in a double well potential-harmonic versus chirp modulation. https://doi.org/10.1209/0295-5075%2F124%2F30002

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