Waterloo’s Tsen leads quantum nanoscale materials research as new chair

Adam Wei Tsen, Associate Professor in Chemistry and faculty in Quantum Computing, has been appointed an Endowed Chair in Nanotechnology at Waterloo, a position he will hold for an initial term of five years with potential for renewal. Tsen’s research focuses on two-dimensional quantum materials, engineered into heterostructures exhibiting properties like superconductivity and unique magnetism, then fabricated into devices that can surpass traditional systems.

He leads a team integrating expertise from chemistry, physics, and engineering, stating, “It helps to have people with different backgrounds precisely because our work is at the intersection between different fields.” This interdisciplinary approach, supported by Waterloo’s nanotechnology infrastructure, aims to bridge materials science with quantum device development.

Tsen Appointed Endowed Chair in Nanotechnology

This long-term investment acknowledges the significance of Tsen’s work at the intersection of materials science and device engineering, a field demanding both fundamental understanding and practical application. Critical to this research is access to specialized facilities; Tsen emphasizes the necessity of nanofabrication tools for creating electrical contacts and complex heterostructures.

“A lot of our work requires the ability to make devices on extremely small materials—on the micron scale,” he says. Without that infrastructure, we wouldn’t be able to do the things that we do at all.” This infrastructure, he notes, is uniquely available within Canada, providing a distinct advantage for his team’s investigations into nanoscale phenomena.

Expertise in devices and circuits complements a deep understanding of solid-state materials, creating a synergistic environment for tackling complex challenges. “Someone from a purely chemistry or physics background might not have a lot of exposure to devices and circuits. Someone from an engineering background might not know much about solid-state materials. These different types of expertise complement each other,” Tsen explains. He envisions his work bridging the gap between materials science, nanotechnology, quantum computing, and device engineering, fostering collaboration across traditionally separate communities.

He aims to extend techniques developed for two-dimensional systems to other materials, including bulk crystals and thin films, broadening the potential impact of his research. This expansion of scope underscores the ambition of the newly endowed chair to advance nanotechnology through a uniquely integrated approach.

The nanotechnology infrastructure here is quite unique in Canada.

Adam Wei Tsen, Associate Professor in Chemistry and faculty at the Institute for Quantum Computing
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Ivy Delaney

Ivy Delaney has been working with neural networks and machine learning since the mid-nineties, back when a couple of hidden layers and a long afternoon of training counted as ambitious. She has watched the field go from academic curiosity to the thing quietly running underneath everything, and she brings that long view to quantum computing. For Quantum Zeitgeist she covers the ground where the two fields meet. That means quantum machine learning and the variational algorithms it leans on, and it also means the less glamorous but more interesting story of classical machine learning already doing real work inside quantum machines, decoding error-correcting codes, calibrating noisy hardware and learning the error models that simulators depend on. She writes about the hardware those algorithms have to run on too, and about the post-quantum cryptography scramble that the same hardware has set off. Her stories typically start with the paper, whether that is peer-reviewed work, conference proceedings or an arXiv preprint, with the source linked so you can hold a claim up against the research it came from. She is unimpressed by benchmarks that will not say what they beat, and by demonstrations that only work in the press release.

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