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SUMMARY:Modular invariants for group-theoretical modular data - Alexei Dav
 ydov (Ohio University)
DTSTART:20170126T160000Z
DTEND:20170126T170000Z
UID:TALK70316@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:Group-theoretical modular categories is a class of modular cat
 egories  for which modular invariants can be described effectively (in  gr
 oup-theoretical terms). This description is useful for applications in  co
 nformal field theory\, allowing classification of full CFTs with given  ch
 iral halves being holomorphic orbifolds. In condensed matter physics  it c
 an be used to classify possible boson condensations. It also  provides way
 s of studying braided equivalences between group-theoretical  modular cate
 gories.  The class of modular categories can be used to provide examples o
 f  counter-intuitive behaviour of modular invariants: multiple physical  r
 ealisations of a given modular invariant\, non-physicality of some  natura
 l modular invariants.  The talk will try to give an overview of known resu
 lts and open  problems.
LOCATION:Seminar Room 1\, Newton Institute
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