Shunsaku Kitagawa Shunsaku Kitagawa

Associate Professor, Graduate School of Science, Kyoto University *Profile is at the time of the award.

2026HagukumuScience & Engineering(hagukumu)

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Research topics: Probing novel quasiparticles arising from multiple superconducting state phase boundaries

Keyword

Summary: Superconductivity was traditionally thought to exist as a single state within a given material. Recently, however, scientists have discovered unique materials where multiple superconducting states emerge and compete simultaneously._x000D_
This research focuses on the "boundaries" where these different superconducting states collide within such materials. Driven by complex microscopic interactions, previously unknown quasiparticle behaviors (energy states) are expected to emerge at these boundaries. The goal of this research is to unravel the nature of these phenomena, paving the way for the development of groundbreaking future technologies and new materials.

Message

The goal of this research is to demonstrate the inherent "fascination and beauty" of superconductivity—a phenomenon whose profound appeal remains inexhaustible even more than a century after its discovery. I am convinced that previously unseen physical phenomena lie dormant within the unique arena of the phase boundaries between multiple superconducting states._x000D_
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Moving forward, I intend to advance this exploration by focusing on its universality as a macroscopic quantum phenomenon, including drawing comparisons with the insights cultivated from superfluid helium-3. Furthermore, by embracing multifaceted perspectives that transcend the boundaries between experiment and theory, I hope to precisely unravel the unknown energy states hidden at these boundaries, striving for discoveries that will open a new chapter in fundamental physics.