Distributed quantum networks via spin-photon interfaces
We investigate scalable architectures of quantum optical networks with distributed qubits and photonic interconnects using solid-state spin-based qubit systems. Experimental techniques and capabilities include state-of-the-art ultrafast optical manipulation and readout of single spins, high-rate distant entanglement generation and efficient generation of photonic cluster states.
A photo from the distributed quantum entanglement experiment.
Semiconductor spins: Dorian Gangloff, Leon Zaporski, Urs Haeusler, Noah Shofer, Alex Ghorbal, Martin Hayhurst Appel
Diamond spins: Dorian Gangloff, Carola Purser, Cathryn Michaels, Jesus Arjona Martinez, Alex Stramma, Ryan Parker, William Roth
Quantum-enhanced sensing for nanosystems & life sciences
We develop feasible and robust quantum-enhanced sensors based on diamond colour centres, and use them to reveal new physics in nanoscale length scales. Sensing modalities of interest include highly sensitive magnetometry for studying emergent magnetism in new materials, super-resolution thermometry for nanocircuits, and nanoMRI inside live cells for applications in the life sciences.
(Left) A close-up of the quantum sensor head for magnetometry performing ODMR of a single NV centre at the tip of a diamond cantilever. (Right) Magnetic variations captured 100 nm above a 5×5 micron area surface with 10-nm resolution using an NV centre.
Scanning quantum magnetometry: Anthony Tan, Michael Hoegen, Annika Mechnich
Nanodiamond biosensing: Jack Hart, Qiushi Gu, Louise Shanahan
exploring novel materials for quantum-photonics devices
We seek future opportunities for physical systems harnessed for quantum information processing, with applications ranging from communication to simulation. Examples include the study of non-equilibrium and dissipative quantum dynamics in nanoscale and the investigation of novel single-photon light sources particularly amenable to integrating quantum photonic circuitry.
Scalable quantum emitter arrays in atomically thin layered materials on nanostructured substrates.