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SUMMARY:MARVEL Distinguished Lecture — Sharon Glotzer
DTSTART:20220208T160000
DTEND:20220208T171500
DTSTAMP:20260407T164051Z
UID:c74cf88d65e141f171b4cc1a59378e342cdbdff3df5651fa97b07c54
CATEGORIES:Conferences - Seminars
DESCRIPTION:Sharon Glotzer (Uni. of Michigan)\nhttps://epfl.zoom.us/j/6474
 8220382\nPasscode: 4146\n\nProf. Sharon Glotzer\nDepartment chair of chemi
 cal engineering\, University of Michigan\n\nA theory of entropic bonding\n
 Many atomic and molecular crystal structures – made possible by chemical
  bonds – can now be realized at larger length and time scales for nanopa
 rticles and colloids via physical bonds\, including entropic bonds. The st
 ructural similarities between colloidal crystals and atomic crystals sugge
 st that they should be describable within analogous\, though different\, c
 onceptual frameworks. In particular\, like the chemical bonds that hold at
 oms together in crystals\, the statistical\, emergent\, entropic forces th
 at hold hard colloidal particles together in colloidal crystals should be 
 describable using the language of bonding. In this talk\, we present a mic
 roscopic\, mean-field theory of entropic bonding that permits prediction o
 f colloidal crystals in a way that is mathematically analogous to the firs
 t principles prediction of atomic crystals by solving Schrödinger’s eq
 uation or variants thereof. We show how solutions to the theory are facili
 tated by the use of mathematically constructed shape orbitals analogous to
  atomic orbitals\, using the same algorithms used in modern electronic str
 ucture codes for atomic crystal prediction.\n\nAbout the speaker\nSharon C
 . Glotzer is the Anthony C. Lembke Department Chair of Chemical Engineerin
 g\, John Werner Cahn Distinguished University Professor of Engineering and
  the Stuart W. Churchill Collegiate Professor of Chemical Engineering\, an
 d Professor of Materials Science and Engineering\, Physics\, Applied Physi
 cs\, and Macromolecular Science and Engineering at the University of Michi
 gan in Ann Arbor. She received her B.S. degree from the University of Cali
 fornia\, Los Angeles\, and her Ph.D. degree from Boston University\, both 
 in physics. Prior to joining the University of Michigan in 2001\, she work
 ed for eight years at the National Institute of Standards and Technology w
 here she was co-founder and Director of the NIST Center for Theoretical an
 d Computational Materials Science.\nProfessor Glotzer’s research on comp
 utational assembly science and engineering aims toward predictive material
 s design of colloidal and soft matter\, and is sponsored by the NSF\, DOE\
 , DOD and Simons Foundation. Among her notable findings\, Glotzer’s intr
 oduction of the notion of “patchy particles\,” a conceptual approach t
 o nanoparticle design\, has informed wide-ranging investigations of self-a
 ssembly. She showed that entropy alone can assemble shapes into many struc
 tures\, which has implications for materials science\, thermodynamics\, ma
 thematics\, and nanotechnology. Her group’s “shape space diagram” sh
 ows how matter self-organizes based on the shapes of the constituent eleme
 nts\, making it possible to predict what kind of material—glass\, crysta
 l\, liquid crystal\, plastic crystal\, or quasicrystal—will emerge. Glo
 tzer runs a large computational research group of 30 students\, postdocs\,
  and research staff\, and has published over 270 refereed papers and pre
 sented over 300 plenary\, keynote and invited talks around the world. 
LOCATION:https://epfl.zoom.us/j/64748220382?pwd=K25SZytKM2ZJZlNCNDI4Q1NkZF
 RMUT09
STATUS:CONFIRMED
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