Statut  Confirmé 
Série  STRLPTENSHE 
Domaines  hepth 
Date  Mardi 31 Octobre 2017 
Heure  11:30 
Institut  LPTENS 
Salle  LPTENS library 
Nom de l'orateur  Sulejmanpasic 
Prenom de l'orateur  Tin 
Addresse email de l'orateur  
Institution de l'orateur  LPTENS 
Titre  Domain walls, anomalies and (de)confinement in quantum magnets and YangMills theories 
Résumé  Quantum magnets in 2 spatial dimensions are effectively described by a 2+1D abelianhiggs theory with monopoles. Such materials support a phase of highly entangled ground state called the Valence Bond Solid phase, where spin1/2 excitations are confined into spin1 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 YangMills theory as well as theta=pi pure YangMills 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. 
Numéro de preprint arXiv  
Commentaires  
Fichiers attachés 
Pour obtenir l' affiche de ce séminaire : [ Postscript  PDF ]

[ English version ] 