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SUMMARY:Slava Rychkov (IHES)
DTSTART;VALUE=DATE-TIME:20220920T140000Z
DTEND;VALUE=DATE-TIME:20220920T150000Z
DTSTAMP;VALUE=DATE-TIME:20220927T043123Z
UID:IAMP_seminars/111
DESCRIPTION:Title: Tensor Renormalization Group at Low Temperatures\nby Slava Ryc
hkov (IHES) as part of One world IAMP mathematical physics seminar\n\n\nAb
stract\nTensor RG is a real-space approach to renormalization in lattice m
odels. It shows impressive numerical results\, but its rigorous theory is
still in its infancy. I will start by reminding the basics of Tensor RG\,
and what makes it potentially more powerful than Wilson-Kadanoff approach.
I will then explain how Tensor RG can be used to understand the Ising mod
el in nonzero magnetic field at low temperatures. This gives an alternativ
e to the Pirogov-Sinai theory and to the renormalization group methods in
the contour representation from the 1980’s. Joint work with Tom Kennedy\
, to appear soon.\n
LOCATION:https://researchseminars.org/talk/IAMP_seminars/111/
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