scholarly journals Non-universality of string tension ratios and gluon confinement at finite temperature

2005 ◽  
Author(s):  
Michael Ogilvie ◽  
Peter N. Meisinger
Keyword(s):  
Finite Temperature ◽  
String Tension

scholarly journals String tension at finite temperature Lattice QCD

2012 ◽  
Author(s):  
Pedro Bicudo ◽  
N. Cardoso ◽  
Orlando Oliveira ◽  
Paulo Silva
Keyword(s):  
Lattice Qcd ◽  
Finite Temperature ◽  
String Tension ◽  
Temperature Lattice

scholarly journals THE STRING TENSION IN TWO-DIMENSIONAL GAUGE THEORIES

1999 ◽  
Vol 14 (16) ◽  
pp. 2475-2493 ◽  
Author(s):  
A. ARMONI ◽  
J. SONNENSCHEIN ◽  
Y. FRISHMAN
Keyword(s):  
Finite Temperature ◽  
Gauge Theories ◽  
String Tension ◽  
Temperature Behavior ◽  
Two Dimensional ◽  
Long Distance ◽  
Distance Behavior

We review and elaborate on properties of the string tension in two-dimensional gauge theories. The first model we consider is massive QED in the m≪e limit. We evaluate the leading string tension both in the fermionic and bosonized descriptions. We discuss the next-to-leading corrections in m/e. The next-to-leading terms in the long distance behavior of the quark–antiquark potential, are evaluated in a certain region of external versus dynamical charges. The finite temperature behavior is also determined. In QCD 2 we review the results for the string tension of quarks in cases with dynamical quarks in the fundamental, adjoint, symmetric and antisymmetric representations. The screening nature of SYM 2 is re-derived.

scholarly journals FINITE TEMPERATURE SU(2) GAUGE THEORY: CRITICAL COUPLING AND UNIVERSALITY CLASS

2008 ◽  
Vol 19 (07) ◽  
pp. 1079-1093 ◽  
Author(s):  
ALEXANDER VELYTSKY
Keyword(s):  
Gauge Theory ◽  
High Precision ◽  
Finite Temperature ◽  
Universality Class ◽  
String Tension ◽  
Strong Coupling Regime ◽  
Critical Coupling ◽  
Binder Cumulant ◽  
Good Agreement ◽  
3D Ising Model

We examine SU(2) gauge theory in 3 + 1 dimensions at finite temperature in the vicinity of critical point. For various lattice sizes in time direction (Nτ = 1, 2, 4, 8) we extract high precision values of the inverse critical coupling and critical values of the 4th order cumulant of Polyakov loops (Binder cumulant). We check the universality class of the theory by comparing the cumulant values to that of the 3D Ising model and find very good agreement. The Polyakov loop correlators for the indicated lattices are also measured and the string tension values extracted. The high precision values of critical coupling and string tension allow us to study the scaling of dimensionless [Formula: see text] ratio. The violation of scaling by < 10% is observed as the coupling is varied from weak to strong coupling regime.

SOME DEVELOPMENTS IN POLYAKOV–KLEINERT STRING WITH EXTRINSIC CURVATURE STIFFNESS

1991 ◽  
Vol 06 (20) ◽  
pp. 1815-1823 ◽  
Author(s):  
G. GERMÁN
Keyword(s):  
Finite Temperature ◽  
Extrinsic Curvature ◽  
String Tension ◽  
Quark Potential ◽  
Static Quark

We survey some developments in the theory of strings with extrinsic curvature stiffness proposed by Polyakov and Kleinert. Particular attention is devoted to work on the static quark potential, the string tension at finite temperature and the thermal deconfinement properties of the model.

scholarly journals The (De)confinement Transition in Tachyonic Matter at Finite Temperature

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Adamu Issifu ◽  
Francisco A. Brito
Keyword(s):  
Critical Temperature ◽  
Dielectric Function ◽  
Finite Temperature ◽  
Low Temperatures ◽  
Tachyon Condensation ◽  
String Tension ◽  
Effect Of Temperature ◽  
Gauge Fields ◽  
Low Energies ◽  
Qcd String

We present a QCD motivated model that mimics QCD theory. We examine the characteristics of the gauge field coupled with the color dielectric function (G) in the presence of temperature (T). The aim is to achieve confinement at low temperatures T<Tc, (Tc is the critical temperature), similar to what occurs among quarks and gluons in hadrons at low energies. Also, we investigate scalar glueballs and QCD string tension and effect of temperature on them. To achieve this, we use the phenomenon of color dielectric function in gauge fields in a slowly varying tachyon medium. This method is suitable for analytically computing the resulting potential, glueball masses, and the string tension associated with the confinement at a finite temperature. We demonstrate that the color dielectric function changes Maxwell’s equation as a function of the tachyon fields and induces the electric field in a way that brings about confinement during the tachyon condensation below the critical temperature.

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