Speaker
Marco Cardinali
(Istituto Nazionale di Fisica Nucleare)
Description
In this work we investigate the relation between the realization of center symmetry and the theta-dependence of
SU(3) and SU(4) Yang-Mills theories defined on $R^3 \times S^1$. In particular we use the double-traced deformed version of Yang-Mills theory,
in which extra pieces coupled to the traces of the powers of Polyakov loop are addedd to the standard action in order
recover center symmetry even at small compactification radii. First we study the phase diagram in the deformation plane; then we compute the topological susceptibility and the first term of the theta expansion of the free energy in the deformed theory and we compare them with the known values of the undeformed one.
Primary authors
Dr
Claudio Bonati
Marco Cardinali
(Istituto Nazionale di Fisica Nucleare)
Massimo D'Elia
(PI)
Mr
Fabrizio Mazziotti
(INFN- Se. Pisa)
