The control of quantum correlation and entanglement in systems in contact with environment plays an important
role in quantum computing. We have considered a system of two coupled oscillators in contact with a common heat
bath and with a time dependent oscillation frequency. The possibility to control the entanglement of
the oscillators by means of an external sinusoidal perturbation applied to the oscillation frequency
has been theoretically explored. We have demonstrated that the oscillators become entangled exactly in the region where the classical counterpart is unstable. The classical system has been electronically implemented and the experimental results have been compared with the theoretical simulations. Therefore, we can control the entanglement swapping from stable to unstable regions by adjusting amplitude and phase of our external perturbation.
Our results have the intriguing peculiarity of manipulating
quantum information operating on a classical system.

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