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.
Studies optical quantum science in solid-state systems with emphasis on photonic integration. Directions: (1) photonic integration of NV-center spin qubits in diamond nanophotonic circuits for scalable quantum sensing arrays; (2) 2D semiconductor (TMD) nanophotonic devices exploiting valley and spin-valley degrees of freedom; (3) engineering light-matter interactions for quantum information and sensing in nanoscale optical cavities. Key goal: scalable on-chip quantum sensing platforms.
Hilico develops high-resolution laser and two-photon spectroscopy of trapped, sympathetically-cooled molecular hydrogen ions (H2+, HD+) to test molecular QED and extract fundamental constants (proton/electron mass ratio), part of LKB's broader precision-metrology and fundamental-interaction-testing programme.
Hinde is a fluorescence-fluctuation physicist embedded in cell biology: she uses pair-correlation function analysis, number-and-brightness, phasor-FLIM and FRET to read out chromatin compaction, protein-chromatin binding dynamics and nucleocytoplasmic transport in living nuclei, at spatial and temporal scales that conventional imaging averages away. The programme is a technique-pushing one — the emphasis is on extracting nanoscale structural information from photon statistics rather than on brute-force localisation — and it is now being coupled to quantum sensing through her QUBIC investigatorship, where the goal is to combine fluorescence readouts with NV-based magnetic and spin-noise contrast in the same cell. 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 — her role in QUBIC is to supply the cell-biological questions and the correlative optical readouts that make pT/sqrt(Hz)-class ensemble sensing biologically interpretable. Preferred attribute present: lifetime- and orientation-resolved methods pushing past the usual resolution limits.
Hobson co-leads the Ultracold Strontium Laboratory within the AION atom-interferometer collaboration, developing squeezed strontium atomic ensembles and quantum-non-demolition measurement techniques to beat the standard quantum limit in long-baseline atom-interferometric searches for dark matter and gravitational waves, alongside a parallel programme on ultra-precise, shock-resistant optical clocks. Actively recruiting postdocs as the group builds out its cold-atom laboratories.
Hoffman develops and applies electron-nuclear double resonance (ENDOR) spectroscopy -- a combination of EPR and NMR -- to resolve individual hyperfine-coupled nuclei at metalloenzyme active sites with atomic-scale precision, work that has revealed mechanisms of nitrogenase nitrogen fixation, radical-SAM enzyme catalysis, and copper/methane monooxygenase chemistry. The technique pushes magnetic-resonance spectroscopic resolution well past what conventional EPR can resolve, in a manner methodologically continuous with molecular spin-qubit sensing.
Hogan's group studies atoms and molecules in high Rydberg states for precision measurements and quantum sensing. Research directions: (1) Rydberg atom electric field sensing — Rydberg atoms exhibit enormous electric polarizabilities; Stark-map and EIT-based electrometry with sub-mV/cm sensitivity and GHz-range frequency coverage; (2) Rydberg molecule spectroscopy — long-range Rydberg molecules as probes of intermolecular forces; (3) Stark deceleration and trapping of Rydberg atoms/molecules — producing cold samples for precision spectroscopy and scattering experiments; (4) Circular Rydberg states — extremely long-lived states for quantum information storage and sensing. Collaborates on quantum-enhanced sensing of RF/microwave fields.
Hogan leads the Stanford effort on MAGIS-100, a 100-meter atom-interferometric gradiometer at Fermilab designed to search for mid-band gravitational waves and ultralight dark matter using laser-cooled strontium atoms in free fall. His group also develops compact cold-atom gravimeters and gradiometers and explores large-momentum-transfer atom optics to push interferometer sensitivity toward tests of general relativity.
Hogan proposed that the holographic principle implies a fundamental, universal quantum uncertainty ('holographic noise') in the transverse position of spacetime at the Planck scale, and co-led the Fermilab Holometer -- twin co-located, power-recycled Michelson interferometers -- to search for it, ruling out the simplest models to high significance. This is a distinct fundamental-light-physics/quantum-sensing approach from squeezed-light-enhanced GW interferometers (e.g., LIGO), using precision laser interferometry to probe quantum properties of spacetime itself rather than squeezing quantum noise in a detector.
Hollberg works on optical atomic clocks, laser frequency stabilization, and frequency-comb metrology, including chip-scale and field-deployable clock technology with applications to relativistic geodesy and precision tests of fundamental physics.