International Postdoctoral Positions in Artificial Atoms Coupling to Acoustic Vacuum

Superconducting qubits can be considered as artificial atoms and atom physics can be studied with these circuits in regimes that are not accessible to natural atoms. In particular, they can be coupled to acoustic modes by placing them on piezoelectric materials. The coupling to the acoustic modes can be made both very strong and frequency dependent. In this project we study how these properties affect the Lamb shift of these artificial atoms. We are looking for a motivated post-doc who is interested in understanding this fundamental problem. Major responsibilities Your major responsibility as a postdoc is to perform microwave measurements at very low temperatures on artificial atoms made from superconducting circuits. You would be part of a big group that has an advanced technological platform, both in terms of nanofabrication and measurement technology. You would be able to study atomic physics in a regime that is inaccessible for ordinary atomic physics. You will fabricate SAW-coupled qubits and do advanced microwave measurements on them.