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SUMMARY:(Multi-)Critical Point\, and Potential Realization with infinite F
ractal Symmetries
DTSTART;VALUE=DATE-TIME:20220520T170000Z
DTEND;VALUE=DATE-TIME:20220520T174500Z
DTSTAMP;VALUE=DATE-TIME:20221004T173117Z
UID:indico-contribution-189@events.perimeterinstitute.ca
DESCRIPTION:Speakers: Cenke Xu (University of California\, Santa Barbara)\
nIn the last few years the concept of symmetry has been significantly expa
nded. One exotic example of the generalized symmetries\, is the “type-II
subsystem symmetry”\, where the conserved charge is defined on a fracta
l sublattice of an ordinary lattice. In this talk we will discuss examples
of models with the fractal symmetries. In particular\, we will introduce
a quantum many-body model with a “Pascal’s triangle symmetry”\, whic
h is an infinite series of fractal symmetries\, including the better known
Sierpinski-triangle fractal symmetry. We will also construct a gapless mu
lticritical point with the Pascal’s triangle symmetry\, where the genera
tor of all the fractal symmetries decay with a power-law. If time permits\
, we will also mention a few potential experimental realizations for model
s with fractal symmetries.\n\nhttps://events.perimeterinstitute.ca/event/1
1/contributions/189/
LOCATION:
URL:https://events.perimeterinstitute.ca/event/11/contributions/189/
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