Quantum Sensing Microscopy Platform

We have recently purchased a dry dilution refrigerator cryostat with a base temperature of <10 mK and a magnetic field of ≤9 T. The system will be outfitted with active vibration isolation stages and a fast-loading mechanism to enable noise-sensitive measurements and fast turn-around times. Upon delivery in 2023, this cryostat will serve as our central platform to implement novel quantum sensing microscopies, such as microwave-based scanning probe techniques and scanning qubit microscopy (also see our proposal: B. Jäck, Physical Review Research 2 , 043031 (2020)).

The goal of theses measurements will be to visualise fractionalized quasiparticles arising in topologically non-trivial many body states, such as fractional quantum Hall states and quantum spin liquids, and to visualise charge transport at high spatial and temporal resolution. To facilitate these measurements, we develop our own measurement modules, which will be suited to conduct scanning probe microscopy measurements at lowest possible electron temperatures.

Stay tuned for updates!