Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Status Confirmed
Seminar Series STR-LPT-ENS-HE
Subjects hep-th
Date Tuesday 31 October 2017
Time 11:30
Institute LPTENS
Seminar Room LPTENS library
Speaker's Last Name Sulejmanpasic
Speaker's First Name Tin
Speaker's Email Address
Speaker's Institution LPTENS
Title Domain walls, anomalies and (de)confinement in quantum magnets and Yang-Mills theories
Abstract Quantum magnets in 2 spatial dimensions are effectively described by a 2+1D abelian-higgs theory with monopoles. Such materials support a phase of highly entangled ground state called the Valence Bond Solid phase, where spin-1/2 excitations are confined into spin-1 object. Moreover the ground state breaks lattice symmetries spontaneously and is therefore degenerate. The effective description has a striking resemblance to a version of QCD with adjoint matter, including the N=1 and N=2 Super Yang-Mills theory as well as theta=pi pure Yang-Mills theory. The common feature of all these theories is that they are confining and support domain walls which, in turn, are deconfining. The underlying reason for deconfinement are the underlying 't Hooft anomalies between various global symmetries of the theories.
arXiv Preprint Number

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