INSTANTONS IN THE STOCHASTIC QCD VACUUM

1995 ◽  
Vol 10 (24) ◽  
pp. 1755-1760 ◽  
Author(s):  
N.O. AGASYAN ◽  
YU.A. SIMONOV
Keyword(s):  
Correlation Length ◽  
Direct Interaction ◽  
Qcd Vacuum ◽  
Packing Parameter ◽  
Finite Correlation

Instantons in the stochastic confining background are influenced by both the oneloop renormalization in the background and a direct interaction with the background. Stochasticity (finite correlation length) of the background drastically changes the ir properties and yields a convergent instanton density even neglecting interinstanton interaction, while the packing parameter (ρ/R)4 decreases due to the background.

scholarly journals A gauge invariant order parameter for monopole condensation in QCD vacuum

2021 ◽  
Vol 2021 (2) ◽  
Author(s):  
Adriano Di Giacomo
Keyword(s):  
Gauge Theory ◽  
Electric Field ◽  
Correlation Length ◽  
Order Parameter ◽  
Gauge Invariant ◽  
Qcd Vacuum ◽  
Color Confinement ◽  
Invariant Order ◽  
Finite Correlation ◽  
Field Strengths

Abstract In this paper we improve the existing order parameter for monopole condensation in gauge theory vacuum, making it gauge-invariant from scratch and free of the spurious infrared problems which plagued the old one. Computing the new parameter on the lattice will unambiguously detect weather dual superconductivity is the mechanism for color confinement.As a byproduct we relate confinement to the existence of a finite correlation length in the gauge-invariant correlator of chromo-electric field strengths.

scholarly journals Roughness with a finite correlation length in a microtrap

2010 ◽  
Vol 81 (3) ◽  
Author(s):  
Muzhi Wu ◽  
Xiaoji Zhou ◽  
W. M. Liu ◽  
Xuzong Chen
Keyword(s):  
Correlation Length ◽  
Finite Correlation
Sign in / Sign up

Export Citation Format

Share Document