scholarly journals Complex heavy-quark potential and Debye mass in a gluonic medium from lattice QCD

2017 ◽  
Vol 95 (5) ◽  
Author(s):  
Yannis Burnier ◽  
Alexander Rothkopf
Keyword(s):  
Lattice Qcd ◽  
Heavy Quark ◽  
Debye Mass ◽  
Quark Potential ◽  
Heavy Quark Potential

scholarly journals The imaginary part of the heavy-quark potential from real-time Yang-Mills dynamics

2021 ◽  
Vol 2021 (10) ◽  
Author(s):  
Kirill Boguslavski ◽  
Babak S. Kasmaei ◽  
Michael Strickland
Keyword(s):  
Heavy Quark ◽  
Real Time ◽  
Imaginary Part ◽  
Yang Mills ◽  
Debye Mass ◽  
Temporal Decay ◽  
Wide Range ◽  
Quark Potential ◽  
Heavy Quark Potential ◽  
Lattice Perturbation Theory

Abstract We extract the imaginary part of the heavy-quark potential using classical-statistical simulations of real-time Yang-Mills dynamics in classical thermal equilibrium. The r-dependence of the imaginary part of the potential is extracted by measuring the temporal decay of Wilson loops of spatial length r. We compare our results to continuum expressions obtained using hard thermal loop theory and to semi-analytic lattice perturbation theory calculations using the hard classical loop formalism. We find that, when plotted as a function of mDr, where mD is the hard classical loop Debye mass, the imaginary part of the heavy-quark potential shows little sensitivity to the lattice spacing at small mDr ≲ 1 and agrees well with the semi-analytic hard classical loop result. For large quark-antiquark separations, we quantify the magnitude of the non-perturbative long-range corrections to the imaginary part of the heavy-quark potential. We present our results for a wide range of temperatures, lattice spacings, and lattice volumes. This work sets the stage for extracting the imaginary part of the heavy-quark potential in an expanding non-equilibrium Yang Mills plasma.

scholarly journals Heavy Quark Potential in Lattice QCD

2010 ◽  
Vol 186 ◽  
pp. 205-210 ◽  
Author(s):  
Yoshiaki Koma ◽  
Miho Koma
Keyword(s):  
Lattice Qcd ◽  
Heavy Quark ◽  
Quark Potential ◽  
Heavy Quark Potential
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