Hamiltonian chaos in a coupled BEC -- optomechanical cavity system

Details Hamiltonian chaos in a coupled BEC -- optomechanical cavity system Hamiltonian chaos in a coupled BEC -- optomechanical cavity system

2009-09-29

arxiv.org/abs/0909.5465v1

Phys. Rev. A 81, 013802 (2010)

Physics

Quantum Physics

5 figures

Scientific paper

10.1103/PhysRevA.81.013802

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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