Description: Optically or microwave-driven coherent manipulation of spin qubits in diamond, SiC, or Er-doped hosts.
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 â DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity â the link is indirect â this is charge/spin transport rather than magnetometry â 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.
Hemmer pioneered NV-diamond spin sensing and super-resolution with spin defects, working on coherent control, photonic integration of NV sensors, and diamond-based magnetometry/imaging bridging physics and engineering. In the broader landscape of NV-centre ensemble quantum sensing (DEER, nano-NMR, T1 relaxometry) operating near pT/sqrt(Hz) sensitivity, this work is directly in the NV ensemble sensing lineage, emphasizing photonic integration and super-resolution readout.
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.
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 â DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity â 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.
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.
Laucht works on the quantum control of spins across two platforms: donor spin qubits in silicon (with Morello and Dzurak), where he demonstrated electrically-driven single-spin control in a continuous microwave field and pioneered dressed-state protection against decoherence; and, more recently, spin defects in hexagonal boron nitride â a 2D material whose optically addressable spin defects are the most promising candidate for a van der Waals analogue of the NV centre, with the enormous advantage that the sensor can be placed a single atomic layer from the sample. Positioned against the established body of NV-ensemble quantum sensing work â DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity â hBN spin defects are the field's most active attempt to beat the standoff-distance limitation that caps near-surface NV ensemble sensitivity; a candidate with NV ODMR experience would be immediately productive here, running the same pulse sequences on a new defect. Strong fit.
Peter Lodahl's Quantum Photonics Group develops deterministic photon-emitter interfaces using semiconductor quantum dots embedded in photonic nanostructures (nanowires, photonic crystal waveguides). Research targets: single-photon sources with near-unity efficiency and indistinguishability; spin-photon interfaces for quantum repeaters; integrated quantum photonic circuits; and quantum networks based on single emitters. The group leads the Hy-Q Centre for Hybrid Quantum Networks and holds several quantum technology patents and spin-out companies. Borderline case â primarily quantum photonics for networking but with quantum sensing applications (single photon sensing, spin-photon).
Lukin's group is a leading center for quantum science built on NV- and SiV-center diamond spin qubits, neutral-atom (Rydberg) tweezer arrays, and hybrid quantum networks, spanning quantum sensing, quantum information processing, and many-body physics. This work builds directly on the lineage of NV ensemble quantum sensing experiments (DEER, nanoscale NMR, T1 relaxometry) that first reached pT/âHz-class magnetic sensitivities, which Lukin's own group helped pioneer and continues to extend toward nuclear-spin-register-based nanoscale NMR and distributed sensor networks.
McCallum works on the materials and detector physics of donor qubits in silicon and colour centres in diamond and silicon carbide: defect engineering by ion implantation and annealing, characterisation of the resulting spin coherence, and â most relevant to a sensing postdoc â the development of superconducting and semiconductor detectors capable of registering single implanted ions with near-unit efficiency, which is what turns implantation from a statistical process into a deterministic one. He also works on near-surface colour centres, where surface termination and Fermi-level control set the achievable coherence. Positioned against the established body of NV-ensemble quantum sensing work â DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity â his group supplies the near-surface, coherence-optimised spin ensembles that DEER, nanoscale NMR and T1-relaxometry protocols at pT/sqrt(Hz) sensitivity actually depend on.
Morello heads the Fundamental Quantum Technologies Laboratory and is the person who first read out the spin of a single electron, and then a single nucleus, in silicon. Current directions: high-spin donors (antimony-123, with eight nuclear levels) used as qudits and as sensors of local strain and electric field; nuclear acoustic resonance, in which a strain wave rather than a magnetic field drives the nuclear spin; engineered decoherence experiments as tests of quantum foundations; and precision tomography of multi-qubit donor registers. The group's donors are among the longest-coherence solid-state spins known (seconds for nuclei). Positioned against the established body of NV-ensemble quantum sensing work â DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity â a single-donor nuclear spin in silicon is functionally an NV centre with better coherence and worse readout: the same DEER, dynamical-decoupling and nuclear-register protocols apply, and the group's high-spin qudit work is aimed at exactly the multi-level sensing enhancements that the NV community is now chasing. Preferred attribute present: sensitivity and coherence, not fabrication, are the limiting variables here.