SM&FT 2015 - The XVI Workshop on Statistical Mechanics and nonpertubative Field Theory

Session

Session 6

Dec 10, 2015, 5:00 PM

Dipartimento di Fisica, Univ. Bari - INFN Sezione di Bari

Conveners

Session 6

• Michele Pepe (MIB)

43. Implications of Poincare' symmetry for thermal field theories

Leonardo Giusti (MIB)

12/10/15, 5:00 PM

The canonical partition function of a thermal system expressed in a moving frame has a natural implementation in the Euclidean path-integral formulation in terms of shifted boundary conditions. The Poincare' invariance underlying a relativistic theory implies a set of Ward identities among the correlators of the energy-momentum tensor which have also interesting applications in lattice...

33. Duals of lattice QCD in the presence of dynamical fermions

Oleg Borisenko (Bogolyubov Institute for Theoretical Physics, Academy of Sciences of Ukraine)

12/10/15, 5:30 PM

A various approaches to construction of dual formulations of non-abelian lattice gauge theories are reviewed. The conventional approach based on the character expansion is elaborated for SU(2) LGT with the staggered fermions. In the case of U(N) LGT we use the theory of the Weingarten functions to construct a dual formulation. Possible applications related to the finite-density QCD are discussed.

12. Long Range Force and Y-Bosonic strings in Baryons

Dr Ahmed Bakry (Institute of Modern Physics,CAS)

12/10/15, 6:00 PM

The potential due to system of a three static quark (3Q) is studied using SU(3) lattice QCD at finite T. The (3Q) potential is calculated in pure SU(3) Yang-Mills latice gauge theory at finite temperature with Polyakov loops operators. In this work, we focus on the relation between the parameterization ansatz of the (3Q) potential and the observed form of the strings in the baryon. The...

29. On the width of the confining flux tube in the 3D U(1) lattice gauge theory

Davide Vadacchino (TO)

12/10/15, 6:20 PM

A great deal of information about the confining regime of gauge theories can be obtained from the dynamics of the flux tube connecting two opposite chromoelectric charges. Specifically, from the behaviour of its squared width at increasing intercharge distance, which, in an effective string theory approach, is predicted to be logarithmic. This prediction has been confirmed numerically in...