About the project
How about building programmable acoustic highways on a chip! Using origami-inspired phononic lattices, we will switch topological edge paths to route phonons between quantum devices with low loss and high isolation. The project includes multi-scale computational modelling and MEMS fabrication, leading to scalable quantum sensing, multiplexed readout, and adaptive routing.
Quantum technologies need reliable ways to move information on a chip without adding noise or loss. This project tackles that challenge by creating reconfigurable pathways for microscale elastic waves (phonons). We will use origami-inspired metamaterials whose fold state changes stiffness and bandgaps, so protected edge channels can be switched on or off to route signals between devices. The goal is low insertion loss, high isolation, and stable operation from room temperature to cryogenic conditions.
You'll begin with multi-scale modelling to link fold kinematics to elastic properties and band structure. Using semi-analytical spectral elements and Bloch analysis, you'll design lattices that support switchable topological transport. You'll then fabricate Micro-Electromechanical Systems (MEMS) prototypes in low-loss materials such as silicon nitride or aluminium nitride, add interdigitated transducers for excitation, and characterise performance with Radio Frequency (RF) network analysis and laser Doppler vibrometry. Later stages integrate the routers with quantum acoustic elements, for example, surface acoustic wave cavities or spin defect platforms.
The outcome is a high-impact programmable acoustic component for modular quantum systems that enables scalable sensing, multiplexed readout, and adaptive routing, along with an open computational toolkit for further design and optimization.
Training covers elastic wave physics, nanofabrication, cryogenic measurement, and data-driven optimisation. You'll have access to world-class facilities such as cleanrooms, RF labs, vibrometry, and cryostats, and work across mechanics, electronics, and quantum device groups. There are opportunities to engage with our established industry partners and collaborators in RF components, quantum networking, and cryogenic metrology.
