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SUMMARY:Hilbert space fragmentation\, zero modes\, and strong ETH breaking
  in an anyonic chain\, Dr. Nico Kirchner\, Technical University of Munich
DTSTART:20260526T030000Z
DTEND:20260526T050000Z
DTSTAMP:20260525T002900Z
UID:indico-event-205@indico.phys.nthu.edu.tw
DESCRIPTION:The eigenstate thermalization hypothesis (ETH) provides a gene
 ral paradigm for understanding the thermalization behavior of generic isol
 ated quantum many-body systems\, and its violation is subject to current r
 esearch. In this talk\, we go beyond the usual bosonic and fermionic cases
  and study a chain of non-Abelian Fibonacci anyons subject to braiding in 
 a magnetic field. For this model\, braiding-induced destructive interferen
 ce results in an exponential number of dynamically disconnected subspaces\
 , giving rise to (weak) Hilbert space fragmentation and violation of ETH. 
 Each of these subspaces is associated with a conserved sublattice pattern 
 in real space and further hosts zero modes. Moreover\, the system is shown
  to strongly violate ETH using infinite temperature connected correlators 
 that converge to finite\, nonzero values in the thermodynamic limit.\n\nht
 tps://indico.phys.nthu.edu.tw/event/205/
LOCATION:R620 (NTHU)
URL:https://indico.phys.nthu.edu.tw/event/205/
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