Bøttcher builds hybrid superconductor-semiconductor (Al/InAs) devices and develops new circuit-QED-based quantum sensing tools to probe emergent phases -- unconventional pairing, topological superconductivity -- in 2D and mesoscopic quantum materials that are difficult to access with conventional transport measurements.
Feldman's group uses scanning NV-diamond magnetometry -- imaging local magnetic fields with a single spin at the tip of a scanning probe -- to visualize currents, magnetism, and correlated-electron order in moire and other quantum materials at the nanoscale, extending the sensitivity/resolution tradeoff of ensemble NV-diamond sensing (DEER/T1 protocols at pT/√Hz) down to single-spin, single-defect imaging.
Hamilton heads the Quantum Electronic Devices group and is Deputy Director of the ARC Centre for Future Low Energy Electronics (FLEET). The group works on hole-based quantum devices in GaAs and germanium, where strong spin-orbit coupling allows all-electrical spin control, and on topological materials and one-dimensional transport. The measurements are millikelvin transport and noise spectroscopy of very small signals in mesoscopic devices. Positioned against the established body of NV-ensemble quantum sensing work — DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity — the link is indirect — this is charge/spin transport rather than magnetometry — but the group's expertise in low-noise cryogenic measurement and in spin-orbit-mediated electrical spin control is directly transferable to electrically-detected spin sensing, which is the main alternative to the optical readout that limits pT/sqrt(Hz) NV ensembles. Borderline inclusion; kept under the inclusive rubric.
Explores boundary between condensed-matter physics and quantum sensing using superconductor-semiconductor circuits. Directions: (1) gate-tunable superconductor-semiconductor parametric amplifier for quantum-limited readout (PRA 2023); (2) room-temperature capacitive strong coupling to mechanical motion for electromechanical sensing (Nano Letters 2025); (3) quantum criticality in Josephson junction arrays; (4) synthetic Hamiltonians in hybrid SC-semi devices probing hidden material behavior. IST Austria → Microsoft → JILA → UChicago Nov 2023.
Micolich works on semiconductor nanowire and organic/polymer nanoelectronic devices, with two strands relevant here: the physics of low-dimensional transport and noise in nanowire transistors, and the use of those devices as transducers at the interface with biological systems, where a nanowire field-effect transistor acts as an extremely local potentiometer sensitive to charge and potential changes at the cell membrane. The group has a strong record in noise spectroscopy — using 1/f and random telegraph noise as a diagnostic rather than a nuisance. Positioned against the established body of NV-ensemble quantum sensing work — DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity — nanowire FET bioelectronic sensing is the principal electrical competitor to NV-based bio-magnetometry: both aim to read out cellular electrophysiology without patch-clamping, one via magnetic fields at pT/sqrt(Hz), the other via local potential. Borderline inclusion, kept because the bio-interface sensing thread is genuine.
Moler's lab builds scanning SQUID microscopes -- magnetic-flux sensors cooled to cryogenic temperatures and scanned within microns of a sample -- to image supercurrents, vortices, and interfacial magnetism in unconventional superconductors and topological materials with sensitivity and spatial resolution that complements ensemble NV-diamond magnetometry (which reaches pT/√Hz via DEER/T1-type protocols) at a very different length and field scale.