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SUMMARY:Multiscale simulations of complex physical phenomena
DTSTART:20100419T161500
DTSTAMP:20260413T205133Z
UID:2eb30cb61a335c1433459bccd7c326380de2cbc2ea8dc3addf1bde9e
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Efthimios Kaxiras\, EPFL\, STI\, IMX\, LMMM\n	A variety 
 of physical phenomena involve multiple spatial and temporal scales. Exampl
 es of such behavior include: the mechanical properties of crystals and in 
 particular the interplay of chemistry and external stress in determining t
 he macroscopic brittle or ductile response of solids\; the effect of molec
 ular-scale forces at interfaces on macroscopic phenomena like wetting and 
 friction\; the effect of meso-scale forces on the behavior of biomolecules
 \, as in experiments of DNA electronic sequencing. \nIn these complex phys
 ical systems\, the changes in bonding and atomic configurations at the mic
 roscopic\, atomic level have profound effects on the macroscopic propertie
 s\, be they of mechanical or electrical nature.  Linking the processes at 
 the two extremes of the scale spectrum is the only means of achieving a de
 eper understanding of these phenomena and\, ultimately\, of being able to 
 predict and control them.\nWhile methodologies for describing the physics 
 at a single scale are well developed in many fields of physics\, chemistry
  or engineering\, methodologies that couple scales remain a challenge\, bo
 th from the conceptual point as well as from the computational point. In t
 his presentation I will discuss the development of methodologies for simul
 ations across disparate length and time scales with the aim of obtaining a
  detailed description of complex phenomena of the type described above.  S
 ome examples of recent applications include chemical embrittlement of meta
 ls\, DNA conductivity and translocation through nanopores\, and patterns o
 f fluid flow in arterial geometries and their interactions with the endoth
 elial layer
LOCATION:CE 4 - Centre Est
STATUS:CONFIRMED
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