Simmons pioneered atomic-precision fabrication in silicon: hydrogen-resist STM lithography, phosphine dosing and epitaxial silicon overgrowth to place individual dopant atoms with sub-nanometre accuracy, then measure them at millikelvin. The programme has produced single-atom transistors, precision dopant arrays used as analogue quantum simulators, and the largest atom-scale device platform in the world; she also founded Silicon Quantum Computing Pty Ltd. The sensing-relevant capability is the single-electron transistor as an exquisitely sensitive electrometer, capable of resolving individual charge transitions and mapping local electrostatic potential at the atomic scale. 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 SET electrometry is the charge-domain counterpart to magnetic NV sensing at pT/sqrt(Hz): both are single-quantum-object detectors whose performance is limited by back-action and by the noise of the readout chain. Very large group, strongly fabrication-oriented and commercially entangled, which cuts against the stated preference for sensitivity-limited rather than fabrication-limited work.
Sipahigil leads the Berkeley Quantum Devices Group, which integrates diamond and silicon-carbide color-center spin qubits with nanophotonic cavities to build quantum networks and solid-state quantum sensors, spanning superconducting circuits to color-center-based quantum memories. The group is actively recruiting postdocs.
Anders Sørensen's Theoretical Quantum Optics group develops theories for controlling individual quantum systems (atoms, photons, solid-state emitters) with focus on quantum information processing and communication. Research includes protocols for quantum repeaters, quantum networks, optomechanical systems, and transduction between microwave and optical frequencies. Strong collaboration with experimental groups at NBI and internationally; core member of the Hy-Q centre.
Tan trained at NIST Boulder in the Wineland lineage and brought quantum-logic spectroscopy and entanglement-enhanced metrology to Sydney. His independent programme builds trapped-ion systems for quantum simulation of vibronic and chemical dynamics, for bosonic/qudit encodings, and — most relevant here — for precision measurement that exploits entangled states to beat the standard quantum limit. The group also works on high-fidelity gates and on using motional modes as sensitive transducers of weak forces and electric fields. 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 — entanglement-enhanced protocols are the natural next step beyond the shot-noise-limited pT/sqrt(Hz) ensemble measurements that define the current NV state of the art, and Tan is one of a small number of Australian PIs actually implementing them. Mid-career, actively building; a strong option for a candidate wanting to move from spin ensembles to entangled sensors.
Tesi leads an independent group at Stuttgart's Institute of Physical Chemistry working on optically addressable molecular spin systems -- the effort to reproduce the NV centre's defining trick (optical initialization and readout of a spin) in a designed molecule, where chemistry rather than crystal growth sets the properties. Work spans photogenerated spin-correlated radical pairs, ODMR on molecular chromophore-radical systems, spin-phonon coupling and coherence engineering, and embedding of molecular spins in films and matrices. Relative to the established NV-ensemble quantum-sensing playbook (DEER, nanoscale NMR, T1 relaxometry at pT/sqrt(Hz) ensemble sensitivity), this is arguably the most direct molecular analogue in the search: the target sensitivity and readout protocols are borrowed straight from NV ensembles, but the emitter is synthetic. Newer, smaller group; good fit for a postdoc who wants to own a direction rather than inherit one.
Thompson leads the Ion Trapping Group at Imperial using RF (Paul) traps with laser-cooled Ca-40 ions and Penning traps. Research foci: (1) High-fidelity quantum logic gates — optimal control techniques for single-ion state manipulation and two-qubit gates; demonstrated >1 s coherence times via Ramsey interferometry in a Penning trap; (2) Precision spectroscopy — ytterbium ion optical clock uncertainty characterisation at 2.2×10^−18 fractional uncertainty (NPL collaboration); proposed precision laser spectrometer for highly charged ions (HCI) in cylindrical Penning traps for QED tests; (3) Axion sensing — collaborating with Devlin on the Penning-trap single-electron photon counter for axion searches; (4) Coulomb crystals — ultrahigh resolution spectroscopy of ion crystals. Past work includes SPECTRAP project at GSI Darmstadt for HCI spectroscopy.
van Slageren's group is one of the leading molecular-qubit labs. They synthesize their own paramagnetic molecules, characterize them with a wide spectroscopic and magnetometric arsenal (multi-frequency and high-field EPR, pulsed EPR/DEER, THz spectroscopy, SQUID magnetometry) and back it with ab-initio calculation. Landmarks include room-temperature quantum coherence in a copper(II) molecular qubit, quantitative prediction of nuclear-spin-diffusion-limited coherence times, measurement of coherence in thin films without post-processing, and recent observation of a sizeable spin-electric effect -- electric-field control of a molecular spin state, which is the mechanism you would exploit for a molecular electrometer. Current direction: molecular quantum spintronics, marrying organic spintronics to molecular magnetism. Relative to the established NV-ensemble quantum-sensing playbook (DEER, nanoscale NMR, T1 relaxometry at pT/sqrt(Hz) ensemble sensitivity), this is the molecular alternative to the diamond defect: chemically tunable spin qubits whose coherence can be engineered by ligand design rather than by host-crystal purification. Immediate neighbours are Krueger (nanodiamond chemistry) and Wrachtrup (NV readout), both already on file -- an unusually complete local ecosystem.
Winpenny holds the Regius Chair in Chemistry at Manchester and is a world leader in molecular magnetism and molecular nanomagnets for quantum technologies. Research directions: (1) Molecular nanomagnets — synthesis of Cr7Ni 'horseshoe' rings and related cage clusters as prototype molecular qubits with long T2 times; (2) Multi-qubit molecular architectures — covalently linked molecular qubit pairs and arrays for quantum gate operations and distributed sensing; (3) Quantum error correction in molecules — designing molecular systems encoding logical qubits with error protection; (4) Quantum sensing applications — molecular spin systems as ultra-sensitive nanoscale magnetic sensors in the sub-nm regime. Leading the NPL M4Q Network and UK molecular qubit community.
Wolf works on trapped-ion quantum sensing, using the motional degrees of freedom of single ions and small crystals as transducers for weak electric fields and forces, together with non-classical motional states (squeezed and Fock states) to enhance the achievable sensitivity. The broader agenda is to use trapped ions as a testbed for fundamental measurement limits — quantum-enhanced amplification of small displacements, quantum non-demolition readout of motion — with an eye to applications in electric-field metrology and searches for new physics. 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 — trapped-ion motional sensing is the cleanest available platform for demonstrating the entanglement-enhanced scaling that NV ensembles at pT/sqrt(Hz) approach only in the shot-noise-limited regime. Early-career independent PI within the Quantum Control Laboratory; smaller group, higher autonomy.
Xu leads the Experimental Quantum Engineering group with a joint ETH–PSI appointment. Research directions: (1) Superconducting circuit quantum sensing — using qubits-as-sensors for detecting weak microwave signals beyond standard quantum limits, quantum non-demolition readout of photon fields; (2) Quantum error correction enabled sensing — integrating bosonic codes (cat qubits, binomial codes) into sensing protocols; (3) Quantum acoustics — coupling superconducting qubits to surface acoustic wave (SAW) resonators for hybrid quantum sensing; (4) Novel quantum hardware at PSI — leveraging PSI's infrastructure for cryogenic device fabrication and testing. Connected to the ETH–PSI Quantum Computing Hub.