You are most cordially invited to the ICTP Webinar Colloquium by Pablo Debenedetti on "The Phase Behavior of Supercooled Water: Recent Computational Results", on Wednesday 17 November 2021 at 16:00 hrs CET
Advance registration is required at:
https://zoom.us/webinar/register/WN_kXFGJGfLRXiS3kmnkshAKw
After registering, you will receive a confirmation email
containing information about joining the webinar.
Biosketch: Pablo G. Debenedetti is the Class of 1950 Professor in Engineering and Applied Science, Professor of Chemical and Biological Engineering, and Dean for Research. He joined the faculty of Princeton University in 1985. He is a member of the National Academy of Engineering, the American Academy of Arts and Sciences, and the National Academy of Sciences, and a Fellow of the American Institute of Chemical Engineers, the American Association for the Advancement of Science, and the American Physical Society.
Debenedetti uses theoretical and computational tools to study the properties of water and aqueous systems, and their applications in areas ranging from the long-term preservation of biomolecules and pharmaceutical compounds to water desalination. His interests span the thermodynamics and statistical mechanics of liquids and glasses, as well as explorations of water and aqueous solutions, protein thermodynamics, nucleation, metastability, and the origin of homochirality in biological systems. Using theoretical and computational methods, Debenedetti and his students have provided key insights into the physical properties of cold liquid water (supercooled water), which is found in large quantities in high-altitude clouds. Debenedetti is the author of one book, Metastable Liquids, and more than 300 scientific articles. He received many professional honours.
Abstract:
Water plays a central role in the physical and chemical
processes that sustain life as we know it. Its ubiquity and
importance notwithstanding, there remain major open questions
concerning the microscopic origin and thermodynamic
consequences of water’s physical properties, which are
anomalous by comparison to those of most other liquids.
Water’s oddities become more pronounced at low temperatures,
especially in the supercooled regime, where the liquid is
metastable with respect to crystallization. The existence of a
first-order phase transition between two liquid forms of
water, terminating at a critical point under deeply
supercooled conditions, has been proposed as a
thermodynamically consistent way of interpreting experimental
observations (Mishima and Stanley, Nature, 396, 329, 1998). I
will present recent computational results on metastable
criticality in realistic models of water (Debenedetti et al.,
Science, 369, 289, 2020), supercooled water thermodynamics
probed with an ab-initio deep neural network model (Gartner et
al., PNAS, 117, 26040, 2020), and the relationship between the
long-range structure of water glasses and criticality (Gartner
et al., Nature Communications, 12, 3398, 2021). These studies
are consistent with the existence of a second, metastable
critical point in water.
The talk will be followed by a question/answer session.
For info, please check the following link: http://indico.ictp.it/event/9716/
With best regards,
Office of the Director, ICTP