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Solids and liquids, often seen as distinct and opposing forces in nature, are much like the Yin and Yang of the material world. This dichotomy, clear in everyday scenarios like the airport's 100-milliliter liquid rule, actually conceals a deeper, more complex truth. In this talk, we will explore how the line between solids and liquids is not as clear-cut as it seems, revealing a subtle and intriguing interplay. I will take you through a journey where liquids exhibit unexpected solidity and solids flow with an almost liquid-like grace. We will delve into the challenging task of distinguishing these two phases based on fundamental principles, particularly focusing on symmetries. The discussion will then extend to the realm of complex soft matter materials, blending solid and liquid characteristics, and finally to the astonishing world of black holes and gravitational systems, displaying both hydrodynamic and elastic properties. By the end of our exploration, you might leave without concrete answers but with a mind flowing with questions, reflecting on the beautifully complex nature of solids and liquids in our universe.
Matteo Baggioli got his PhD in 2016 at Universidad Autonoma de Barcelona with a thesis on the application of gravitational and field theories to condensed matter systems. After two postdoctoral positions at the Crete center for theoretical physics and the institute of theoretical physics in Madrid, in 2020, he joined Shanghai Jiao Tong University as a tenure track associate professor. He is author of more than 85 articles published in international journals including Nat. Commns, PRL, PNAS, Science Advances and Physics Reports.
He is first author of a review article published in Review of Modern Physics and single author of a book published by Springer. In 2022, he was nominated among the Emerging Leaders by the Journal of Physics: Condensed matter. He has received several international prizes including a distinguished visitor grant at NORDITA (Sweden) and a Guest Researcher prize at Ecole Polytechnique Paris. His research interests are highly interdisciplinary and span from liquid dynamics and vibrational properties of amorphous systems, to hydrodynamics and effective field theory, and finally to applications of the holographic duality to strongly correlated systems.
Tencent meeting link: https://meeting.tencent.com/dm/kHeNutwuWi4y Meeting ID: 242 456 870, no password