Experimental astroparticle physicist developing radio-based detection of ultra-high-energy cosmic rays. Directions: (1) HAWC — high-altitude water Cherenkov detector for gamma-ray and cosmic ray sensing; (2) IceTop surface array at IceCube for cosmic ray composition at the knee; (3) radio detection of cosmic-ray-induced air showers (Askaryan emission) as a technique for large-scale UHE cosmic ray sensing. Enrico Fermi Institute member.
Atomic physicist known for spin-exchange optical pumping (SEOP) and its use in ultra-sensitive atomic (SERF-regime) magnetometers, as well as Rydberg-atom quantum information experiments.
Walschaers provides theoretical support for LKB's multimode quantum-optics team, working on entanglement structure, non-Gaussian states, and metrological usefulness of large-scale squeezed-light networks generated via frequency combs.
Walz works on precision spectroscopy of exotic atoms and antimatter. The group is known for continuous-wave Lyman-alpha (121.6 nm) laser sources -- the enabling technology for laser cooling of antihydrogen -- and for antihydrogen and positronium spectroscopy aimed at CPT tests and at antimatter gravity measurements, in collaboration with CERN antiproton-decelerator experiments. Complementary work at Mainz covers laser development, exotic-atom trapping and detection. Relative to the established NV-ensemble quantum-sensing playbook (DEER, nanoscale NMR, T1 relaxometry at pT/sqrt(Hz) ensemble sensitivity), this is a fundamental-symmetry pivot: the sensing content is in ultra-stable lasers, extreme-vacuum trapping and single-particle detection rather than solid-state spins, and it suits a postdoc looking to move from quantum sensors toward fundamental-physics tests.
Ying Wang (assistant professor in Quantum Optoelectronic Devices group) researches GaAs-based integrated photonics for quantum applications: electro-optical quantum dot devices, GaAs-on-insulator waveguide integration, and chip-scale quantum photonics for sensing and QKD.
Develops ultrasensitive, amplification-free nucleic-acid biosensors and molecular barcodes for high-resolution, multiplexed biosensing and diagnostics, alongside targeted drug/mRNA delivery platforms.
Wang develops giant-magnetoresistance (GMR) spin-valve biosensor chips that detect magnetic-nanoparticle-tagged biomolecules with high sensitivity and multiplexing for protein and nucleic-acid diagnostics -- a solid-state magnetic-sensing approach to biosensing that sits alongside NV-ensemble and OPM-based approaches at a very different sensitivity/format tradeoff.
Wang's BOBA group directly images young, self-luminous exoplanets by suppressing host-star glare with coronagraphy, extreme adaptive optics, and long-baseline optical interferometry (e.g. Keck/KPIC, VLTI), combined with physics-based computational signal-processing and machine-learning algorithms to extract faint planetary signals. He led early JWST direct-imaging detections of exoplanets and studies their orbits, formation, and atmospheres via high- and low-resolution spectroscopy. This is offered as an astronomy pivot on the filter: the enabling technology is increasingly complex opto-mechanical and computational instrumentation pushing spatial and spectral resolution, rather than a quantum sensor per se.
Warren uses large near-infrared sky surveys (e.g. UKIDSS/VISTA) to discover and characterise high-redshift quasars, cool brown dwarfs and other rare populations, and works on wide-field survey design and statistics.
Wasielewski's group uses ultrafast photoinduced electron transfer within covalently linked organic donor-acceptor molecules to generate pairs of entangled electron spins (spin-correlated radical ion pairs) that behave as optically-initialized, microwave-addressable molecular qubits. Building on this platform, the group demonstrated explicit quantum sensing of electric fields via molecular-recognition-induced changes in a spin-correlated radical pair, alongside DNA-hairpin-hosted spin-qubit pairs and chirality-induced spin selectivity effects -- extending photosynthetic radical-pair chemistry into a designed quantum-sensing and quantum-information platform.