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'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.
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.
Hollenberg is the intellectual centre of gravity for diamond quantum sensing in Australia: a theorist-turned-programme-leader whose group develops NV-based quantum probes for biological systems and quantum-computing architectures in silicon and diamond. Current directions include the quantum-probe hyperspectral microscope, in which NV ensembles in a bulk diamond substrate report magnetic and spin-noise contrast from cells cultured directly on the surface; nanodiamond quantum probes for intracellular relaxometry and free-radical detection; theory of decoherence-based sensing (T1 relaxometry as a chemical-specificity channel rather than a nuisance); and single-cell magnetic resonance. He co-leads the Melbourne node of the ARC Centre of Excellence in Quantum Biotechnology (QUBIC) with Simpson and Hinde, which is explicitly chartered to build quantum sensors for live biology, including portable brain imagers. 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 — his programme is one of the small number worldwide that has carried those ensemble protocols all the way into cell culture and tissue rather than stopping at proof-of-principle magnetometry. Preferred attribute present: the group's emphasis is on sensitivity and biological specificity rather than device fabrication, and QUBIC funding runs to 2030 with recurring postdoc recruitment.
Home leads the TIQI group working with Be+ and Ca+ trapped ions. Research directions: (1) Quantum error correction — fault-tolerant gates, surface code implementations with multi-ion chains; (2) Precision metrology — ytterbium ion optical clock, mixed-species ion chain spectroscopy and ytterbium HFS measurements; (3) Macroscopic superposition and quantum contextuality — creating nonclassical motional states in harmonic oscillators for tests of quantum foundations; (4) Scalable architectures — photonic integrated waveguides for individual ion addressing, quantum logic detection of spectroscopy ions. Key publications include first two-qubit gates with mixed species and records in quantum state readout fidelity. Lab is investigating quantum logic-enhanced spectroscopy of complex atomic systems.
Hong runs Hybrid Optical Quantum Technologies within Stuttgart's FMQ institute: optomechanical and opto-mechanical-spin hybrid devices used for quantum sensing and for tests of quantum mechanics at larger mass scales. Work covers cavity/phononic-crystal optomechanics driven toward the quantum regime (ground-state cooling, back-action-evading and quantum-limited displacement/force readout) and the coupling of diamond spin defects to mechanical motion, including levitated-diamond spin-mechanics -- where an NV inside a levitated particle both senses and controls the particle's motion. Relative to the established NV-ensemble quantum-sensing playbook (DEER, nanoscale NMR, T1 relaxometry at pT/sqrt(Hz) ensemble sensitivity), this is the same colour-centre physics, deliberately hybridized with mechanics: the sensing target shifts from magnetic field to force, acceleration and displacement, and the group sits alongside Wrachtrup's NV programme in the same building, which is a considerable practical advantage.
Hoogenboom leads a biophysics group at UCL specializing in high-speed atomic force microscopy. Research directions: (1) High-speed AFM — imaging conformational dynamics of DNA, proteins (including membrane channels), and chromatin at ms time resolution and sub-nm spatial resolution in aqueous conditions; (2) Nuclear pore complex — mapping transport selectivity and structure of NPCs in native nuclear envelopes using AFM; (3) Antimicrobial mechanisms — imaging membrane disruption by antimicrobial peptides in real time; (4) AFM-based force spectroscopy — measuring single-molecule interaction forces in chromatin and protein assemblies. Strong relevance to biological sensing at the single-molecule level.
The Hosseini Lab (Quantum Atom Optics) investigates light–atom interactions in rare-earth crystals, room-temperature gases, and nanophotonic structures. Directions: (1) Quantum optical memories in Tm³⁺:YAG and Er³⁺-doped solids using atomic frequency comb (AFC) and gradient echo memory (GEM) protocols for telecom-wavelength quantum networking; demonstrated efficient storage of multi-dimensional telecom photons (Optica Quantum 2025, Phys. Rev. Appl. 2025); (2) Cooperative/collective light–matter interactions in periodic rare-earth ion arrays in nano/micro-photonic structures (collaboration with Oak Ridge NL, Aydin group) for enhanced quantum memory coherence; (3) Quantum squeezed light — applied to enhanced thermoreflectance sensing of electronic hotspots (Appl. Phys. Lett. 2024); (4) Coherent levitation of macroscopic sensors (DARPA YFA 2024, $500k): magnetic and optical trapping of mm-scale objects as high-Q oscillators for magnetometry, vibrational sensing, accelerometry, inertial, and force sensing. Lab actively seeking postdocs in integrated photonics, quantum memory, and levitation sensing (2024–2025). ASEE Curtis W. McGraw Research Award 2026.
Hu pioneers nanofabrication of photonic and electronic devices that couple 'artificial atoms' — semiconductor quantum dots and color-center spin defects (including in silicon carbide) — to nanoscale optical cavities, enabling coherent, efficient photon-spin interfaces for quantum networking and sensing; her emphasis on nanofabrication places this as a borderline, not-preferred case relative to sensitivity-first quantum sensing.
Hutzler's group uses cold and ultracold polar molecules (including polyatomics and laser-cooled species) as exquisitely sensitive probes of fundamental symmetry violation, searching for the electron electric dipole moment and other signatures of physics beyond the Standard Model; the group is developing molecules with enhanced sensitivity and internal co-magnetometry. For context, this complements the established paradigm of NV-diamond ensemble magnetometry (Hahn-echo/DEER, nanoscale NMR, T1 relaxometry) operating near pT/√Hz sensitivity.