Quantum Optics Seminar by Kjetil Børkje – Niels Bohr Institute - University of Copenhagen

Niels Bohr Institute > Calendar > 2012 > Quantum Optics Seminar

Quantum Optics Seminar by Kjetil Børkje

In this talk, I will discuss optomechanical systems, where the motion of a mechanical oscillator modulates the frequency of an optical (or microwave) cavity mode.

In the weak coupling regime of optomechanics, coherent driving of the cavity mode always leads to Gaussian steady-states. To create more interesting states, the system needs to be made nonlinear. This can be achieved either via measurement backaction or via intrinsic nonlinearities. I will present a recent proposal for using measurement backaction to induce entanglement between two remote mechanical oscillators, and show how this entanglement can be verified. If time permits, I will also discuss properties of the single-photon strong coupling regime of optomechanics, where the optomechanical interaction is intrinsically nonlinear.