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SUMMARY:CMSP Seminar: Strongly correlated chiral fermions on a lattice: Lu
 ttinger liquids and symmetric mass generation
DTSTART;VALUE=DATE-TIME:20261019T090000Z
DTEND;VALUE=DATE-TIME:20261019T100000Z
DTSTAMP;VALUE=DATE-TIME:20261004T114249Z
UID:indico-event-11527@ictp.it
DESCRIPTION:\n	Vladimir Zakharov\n	(Leiden University)\n \nAbstract:\n\n	
 Putting a single chiral fermion on a lattice is famously obstructed: any l
 ocal\, chirality-preserving discretization of one Dirac cone comes with un
 wanted doublers. I will present the tangent-fermion method\, which deals w
 ith this problem. It gives a single\, undoubled cone while keeping ordinar
 y\, on-site chiral symmetry\, at the cost of nonlocal hopping. Remarkably\
 , everything else stays local: a local generalized eigenvalue problem\, a 
 local Euclidean action with sign-problem-free quantum Monte Carlo\, and an
  exact matrix-product operator of fixed bond dimension for tensor-network 
 simulations. In the second half I put the method to work\, demonstrating h
 ow it can be used to simulate chiral-fermion physics in different scenario
 s: Luttinger-liquid physics\, spontaneous symmetry breaking at the edge of
  a quantum spin Hall insulator\, and symmetric mass generation in the 3-4-
 5-0 model.\n\n	Zoom registration link:https://zoom.us/meeting/register/b6N
 PLmJVTjS0OF6004ByWw\n	 \n\n\n//indico.ictp.it/event/11527/
LOCATION:Luigi Stasi Seminar Room (Leonardo Building) and via Zoom
URL://indico.ictp.it/event/11527/
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