Solid state spin qubits, in particular the nitrogen vacancy (NV) center in diamond, offer a path towards truly nanoscale magnetic imaging of condensed matter and biological systems with sensitivity to single nuclear spins. Here I discuss our NV-based magnetic imaging experiments as applied to condensed matter systems. I first present results where we employ DC magnetic field imaging to reveal current flow patterns in materials where electron-electron interactions are strong, leading to the observation of hydrodynamic flow. I also discuss a new sensing modality that leverages the NV center’s sensitivity to magnetic noise, which we use to differentiate electronic transport regimes in material systems. Lastly, I present ongoing efforts towards realizing entanglement-enhanced solid-state spin sensors and various many-body effects that can be realized in a strongly interacting spin ensembles.

Ania Bleszynski Jayich is an American experimental physicist most known for developing novel sensing techniques that shed light on biological, condensed matter, and quantum mechanical systems. Bleszynski Jayich is the Bruker Endowed Chair in Science and Engineering in the Department of Physics at the University of California, Santa Barbara and Associate Director of the campus’s Materials Research Lab.