Exactly Soluble QCD and Confinement of Quarks
نویسنده
چکیده
Exactly soluble non-perturbative model of pure gauge QCD is suggested as the weak coupling limit of lattice theory in loop formulation [1]. The model provides exact calculation of any loop average in the continuum limit. Wilson loop is computed for abelian and non-abelian unitary groups in various dimensions, including D = 4 where it reproduces perimeter law for U(1) and gives area law for SU(N). Latter, according to Wilson, means confinement of quarks.
منابع مشابه
Chiral Symmetry and Quark Confinement
In the physical vacuum of QCD, the energy density of lightquark fields strongly coupled to slowly varying gluon fields can be negative, and so a condensate of pairs of quarks and antiquarks of nearly opposite momenta forms which breaks chiral symmetry, confines quarks, and makes gluons massive. February 1, 2008 ∗[email protected] http://kevin.phys.unm.edu/̃ kevin/ 1 The QCD Vacuum The the...
متن کاملConfinement and Chiral Symmetry, a Lattice QCD test of AdS/QCD
We use lattice QCD simulations to test some of the predictions of proposed AdS/QCD (holographic) duals for QCD. In particular, these duals predict that the scale of chiral symmetry breaking (χSB) can be varied independently from that of confinement, with the proviso that the scale of χSB cannot be longer than that of confinement. We simulate lattice QCD with 2 quarks in the fundamental represen...
متن کاملConfinement of Light Quarks in Qcd at Finite Density
The 4q effective Lagrangian and the gap equation are derived for light quarks in the confinement phase of QCD. The modification of the confining string due to finite quark density (chemical quark potential µ) is observed. As a surprising result in a multiquark system with a common string junction an attractive well appears of radius µ/σ and of an average depth equal to µ. Possible implications ...
متن کاملar X iv : h ep - p h / 96 08 42 8 v 1 2 3 A ug 1 99 6 CONFINEMENT AND LIGHT - FRONT QCD
Numerical results for the (rest-frame) Q ¯ Q potential in light-front quantized QCD2+1 on a ⊥ lattice are presented. Both in the longitudinal as well as the ⊥ spatial directions one obtains linear confinement. The confinement mechanism in light-front QCD depends on the orientation of the external charges: for longitudinally (with respect to the boost direction in the infinite momentum frame) se...
متن کاملJa n 19 94 Color Confinement , Quark Pair Creation and Dynamical Chiral - Symmetry Breaking in the Dual Ginzburg - Landau Theory
We study the color confinement, the q-¯ q pair creation and the dynamical chiral-symmetry breaking of nonperturbative QCD by using the dual Ginzburg-Landau theory, where QCD-monopole condensation plays an essential role on the nonper-turbative dynamics in the infrared region. As a result of the dual Meissner effect, the linear static quark potential, which characterizes the quark confinement, i...
متن کامل