We have realized high-Q trampoline resonators in tensile-strained InGaP with a Q of 10⁷. This is a first step towards using crystalline materials for integrated cavity optomechanics. Our work has now been published in Nano Letters, see here. Thanks for the great effort in the cleanroom and for the material growth!

We have put our most recent work on the arxiv, read it here. We demonstrate a new concept to realize an optomechanical microcavity. We unite in-plane and out-of-plane light propagation to increase the optomechanical coupling strength. Wonderful teamwork between experiment and theory!

Our work on magnetically levitated superconducting microparticles in an anharmonic potential on a chip has been published in Phys Rev Applied. Congrats to the team!

Gothenburgs Science Festival (Vetenskapsfestivalen) is currently on-going and Witlef gave a public presentation this Saturday. Young and old were equally fascinated by the pursuit to research the limits of quantum mechanics. It was great fun to present our research to the public and I received many excellent questions and saw kids with curious eyes in the audience!

The ERC has awarded Witlef with a Consolidator Grant. This is great news as it allows our lab to push further the frontiers of quantum physics to more macroscopic objects. The goal of the project is to entangle multiple magnetically levitated superconducting particles – all on a chip. We will start this exciting endeavor on Jan 1st 2024. Stay tuned!