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X-WR-CALNAME:Centre for Mathematical Sciences
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X-WR-CALDESC:Events for Centre for Mathematical Sciences
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TZOFFSETFROM:+0000
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DTSTART:20210101T000000
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BEGIN:VEVENT
DTSTART;TZID=UTC:20210224T160000
DTEND;TZID=UTC:20210224T170000
DTSTAMP:20211023T171737
CREATED:20201030T184215Z
LAST-MODIFIED:20210218T140544Z
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SUMMARY:Linnéa Gräns Samuelsson (Saclay)
DESCRIPTION:Discretizing 2d conformal field theories: the lattice action of the conformal algebra\nConformal field theories (CFTs) are ubiquitous in theoretical physics as fixed points of renormalization\, descriptions of critical systems and more. In these theories the conformal symmetry is a powerful tool in the computation of correlation functions\, especially in 2 dimensions where the conformal algebra is infinite. Discretization of field theories is another powerful tool\, where the theory on the lattice is both mathematically well-defined and easy to put on a computer. In this talk I will outline how these are combined using a discrete version of the 2d conformal algebra that acts in lattice models. I will also discuss recent work on convergence of this discretization\, as well as on applications to non-unitary CFTs that appear in descriptions of problems of interest in condensed matter physics such as polymers\, percolation and disordered systems.
URL:http://math-sciences.org/event/linnea-grans-samuelsson-saclay/
LOCATION:Zoom
CATEGORIES:Seminars,Theoretical Physics
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