Route to ponderomotive entanglement of light via optically trapped mirrors

نویسندگان

  • Christopher Wipf
  • Thomas Corbitt
  • Yanbei Chen
  • Nergis Mavalvala
چکیده

The radiation pressure of two laser beams detuned from resonance in an optical cavity can create a stable optical trap for a mechanical oscillation mode of a movable cavity mirror. Here it is shown that such a configuration entangles the output light fields via interaction with a mirror that is suspended as a pendulum. The degree of entanglement is quantified spectrally using the logarithmic negativity, and related to the available optical restoring force. Entanglement survives in the experimentally accessible regime of gram-scale masses subject to thermal noise at room temperature.

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تاریخ انتشار 2008