28 janvier 2021

Webinar Gregory Falkovich

Gregory Falkovich graduated in Physics at Novosibirsk State University in 1981. He defendend his Ph.D. in Physics in 1984 at Nuclear Physics Inst.,Novosibir. He joined the Weizmann Institute of Science as Senior Scientist in 1992, in 1996 he became Associate Professor and since 2002 he is Full Professor at WIS. From 2004 to 2010 he served the Weizmann Institute of Science as Head of the Department of Physics of Complex Systems. Gregory Falkovich has also been appointed as Head of Scientists Union at the Weizmann Institute of Science, Deputy chairman of the Scientific Advisory Committee of Novosibirsk State University and Divisional Editor of Phys. Rev. Lett. Among the several awards, he received the Excellence Prize of the USSR Ac. Sci. in 1983, the Award of the USSR Ac. Sci. Siberian Division in 1984, the Guastalla Fellowship at the Weizmann Institute in 1992, the Walter and Elise Hass Career Development Chair in 1994, and the Levinson Prize in Physics, Weizmann Institute in 1996. In 2005 he has been elected Fellow of the Institute of Physics, London and in 2009 as an outstanding referee of APS. His research interests range over the domains of Theoretical Physics, Statistical Physics, Fluid Mechanics, Solid State Physics, Cloud Phys ics and Geophysics.
Information capacity of turbulent cascades

Abstract:The review will be given of the information-theory approach to turbulence. The main question is the following one: if non-equilibrium state has entropy lower than equilibrium at the same energy, where this information is encoded? We consider a general wave turbulence and show that its statistics cannot be close to Gaussian, that is, strictly speaking, weak turbulence does not exist. We also describe a set of resonantly interacting waves and respective shell model and describe its cascades and informational content.

28 janvier 2021, 16h3017h30
Webinar (please contact F. Romano for the link)