Room temperature cavity electromechanics in the sideband-resolved regime

Si3N4 optomechanical crystals in the resolved-sideband regime

Wide bandwidth nanowire electromechanics on insulating substrates at room temperature.

We study InAs nanowire resonators fabricated on sapphire substrate with a local gate configuration. The key advantage of using an insulating sapphire substrate is that it results in a reduced parasitic capacitance, thus allowing both wide bandwidth actuation and detection using a network analyzer as well as signal detection at room temperature. Both in-plane and out-of-plane vibrational modes o...

Complete S matrix in a microwave cavity at room temperature.

We experimentally study the widths of resonances in a two-dimensional microwave cavity at room temperature. By developing a model for the coupling antennas, we are able to discriminate their contribution from those of Ohmic losses to the broadening of resonances. Concerning Ohmic losses, we experimentally put to evidence two mechanisms: damping along propagation and absorption at the contour, t...

Strong squeezing and robust entanglement in cavity electromechanics

We investigate nonlinear effects in an electromechanical system consisting of a superconducting charge qubit coupled to a transmission line resonator and a nanomechanical oscillator, which in turn is coupled to another transmission line resonator. The nonlinearities induced by the superconducting qubit and the optomechanical coupling play an important role in creating optomechanical entanglemen...

Cavity sideband cooling of trapped molecules

Markus Kowalewski,1 Giovanna Morigi,2,3 Pepijn W. H. Pinkse,4 and Regina de Vivie-Riedle1 1Department of Chemistry, Ludwig-Maximilian-Universität, D-81377 Munich, Germany 2Departament de Fı́sica, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Spain 3Theoretische Physik, Universität des Saarlandes, D-66041 Saarbrücken, Germany 4MESA+ Institute for Nanotechnology, University of Twente, P.O...