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53 papers · 1 filter
Euler-Poincare' Characteristic and Phase Transition in the Potts Model
Philippe Blanchard, Santo Fortunato, Daniel Gandolfo
Recent results concerning the topological properties of random geometrical sets have been successfully applied to the study of the morphology of clusters in percolation theory. Thi…
Infinitely many star products to play with
J. M. Gracia-Bondia, F. Lizzi, G. Marmo +1
While there has been growing interest for noncommutative spaces in recent times, most examples have been based on the simplest noncommutative algebra: [x_i,x_j]=i theta_{ij}. Here…
Common features of deconfining and chiral critical points in QCD and the three state Potts model in an external field
F. Karsch, Ch. Schmidt, S. Stickan
In the presented study we investigated the second order endpoints of the lines of first order phase transitions which emerge for the QCD in the heavy and light quark mass regime an…
1/M correction to quenched QCD with non-zero baryon density
Gert Aarts, Olaf Kaczmarek, Frithjof Karsch +1
We study the κ^2 corrections to the quenched limit of μ>0 QCD. We use an improved reweighting procedure.
Meson Spectral Functions at finite Temperature
I. Wetzorke, F. Karsch, E. Laermann +2
The Maximum Entropy Method provides a Bayesian approach to reconstruct the spectral functions from discrete points in Euclidean time. The applicability of the approach at finite te…
Temporal quark and gluon propagators: measuring the quasiparticle masses
P. Petreczky, F. Karsch, E. Laermann +2
We calculate the Coulomb gauge temporal quark and gluon propagators in quenched QCD. From the temporal quark and gluon propagators, dispersion relations and quasiparticle masses ar…