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SUMMARY:Wei Wu (NYU Shanghai)
DTSTART;VALUE=DATE-TIME:20210202T140000Z
DTEND;VALUE=DATE-TIME:20210202T150000Z
DTSTAMP;VALUE=DATE-TIME:20210228T182845Z
UID:IAMP_seminars/37
DESCRIPTION:Title: Massless phases for the Villain model in $d \\geq 3$\nby Wei Wu
(NYU Shanghai) as part of One world IAMP mathematical physics seminar\n\n
\nAbstract\nThe XY and the Villain models are mathematical idealization of
real world models of liquid crystal\, liquid helium\, and superconductors
. Their phase transition has important applications in condensed matter ph
ysics and led to the Nobel\nPrize in Physics in 2016. However we are still
far from a complete mathematical\nunderstanding of the transition. The sp
in wave conjecture\, originally proposed by Dyson and by Mermin and Wagner
\, predicts that at low temperature\, large scale behaviors of these model
s are closely related to Gaussian free fields. I will review the historica
l background and discuss some recent progress on this conjecture in $d \\g
eq 3$.\nBased on the joint work with Paul Dario (Tel Aviv).\n
LOCATION:
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