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arXiv · 0909.5465

Hamiltonian chaos in a coupled BEC -- optomechanical cavity system

K. Zhang·W. Chen·M. Bhattacharya·P. Meystre
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Abstract

We study a hybrid optomechanical system consisting of a Bose-Einstein condensate (BEC) trapped inside a single-mode optical cavity with a moving end-mirror. The intracavity light field has a dual role: it excites a momentum side-mode of the condensate, and acts as a nonlinear spring that couples the vibrating mirror to that collective density excitation. We present the dynamics in a regime where the intracavity optical field, the mirror, and the side-mode excitation all display bistable behavior. In this regime we find that the dynamics of the system exhibits Hamiltonian chaos for appropriate initial conditions.

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K. Zhang, W. Chen, M. Bhattacharya, P. Meystre. 2009-09-29. Hamiltonian chaos in a coupled BEC -- optomechanical cavity system. https://doi.org/10.1103/physreva.81.013802

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