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Thursday, 16 April 2026

Video-Recording for any system with MP4-support

- Video.mp4 (ca. 322 Mb)

15:15 – 16:05

"Visualizing Quantum Matter at Atomic Scale"

Prof. J.C. Séamus Davis

(University of Oxford)

Abstract:

Everything around us, everything each of us has ever experienced, and virtually

everything underpinning our technological society and economy is governed by

quantum mechanics. Yet this most fundamental physical theory of nature often

feels as if it is a set of somewhat eerie and counterintuitive ideas of no direct

relevance to our lives.

Why is this?

One reason is that we cannot perceive the strangeness (and astonishing beauty)

of the quantum mechanical phenomena all around us by using our own senses.

I will describe the history of development of techniques that allow us to visualize

electronic quantum phenomena and new states of quantum matter directly at the

atomic scale. As recent examples, we will visually explore the previously unseen

and very beautiful forms of quantum matter making up electronic liquid crystals

(1,2); high temperature superconductors (2,3,4); electron-pair crystals (5,6,7) and

intrinsic topological superconductors (8,9). I will discuss the implications for

fundamental physics research and also for advanced materials and quantum

technologies, arising from such direct atomic-scale visualization of quantum matter.

References

1. Science 344, 612 (2014)

2. Nature 570, 484 (2019)

3. Science 357, 75 (2017)

4. Science 364, 976 (2019)

5. Nature 532, 343 (2016)

6. Nature 571, 234 (2020)

7. Science 372, 1447 (2021)

8. Nature 618, 921 (2023)

9. Science 388, 938 (2025)