181 citations · 2.4k across the 144 of their papers we have counts for
60 papers · 1 filter
Lattice gauge theories in the strong coupling and static limits as a sign-problem-free Ising model
B. Allés, O. Borisenko, A. Papa +1
The effective action of the SU(N) Polyakov loop model in the strong coupling region and in the static limit for the quark determinant can be mapped onto the Ising model in any dime…
Unveiling confinement in pure gauge SU(3): flux tubes, fields, and magnetic currents
M. Baker, V. Chelnokov, L. Cosmai +2
A characteristic signature of quark confinement is the concentration of the chromoelectric field between a static quark-antiquark pair in a flux tube. However, the structure of thi…
Dual Polyakov loop model at finite density: phase diagram and screening masses
Oleg Borisenko, Volodymyr Chelnokov, Emanuele Mendicelli +1
We consider a dual representation of an effective three-dimensional Polyakov loop model for the SU(3) theory at nonzero real chemical potential. This representation is free of the…
Dual simulation of a Polyakov loop model at finite baryon density: phase diagram and local observables
Oleg Borisenko, Volodymyr Chelnokov, Emanuele Mendicelli +1
Many Polyakov loop models can be written in a dual formulation which is free of sign problem even when a non-vanishing baryon chemical potential is introduced in the action. Here,…
Three-quark potentials in an effective Polyakov loop model
O. Borisenko, V. Chelnokov, Emanuele Mendicelli +1
Three-quark potentials are studied in great details in the three-dimensional pure gauge theory at finite temperature, for the cases of static sources in the fundamental and…
Spatial structure of the color field in the SU(3) flux tube
M. Baker, Paolo Cea, Volodymyr Chelnokov +3
We report on the chromoelectric and chromomagnetic fields generated by a static quark-antiquark pair at zero temperature in pure gauge SU(3). From the spatial structure of chromoel…
Finite density 2d O(3) sigma model: dualization and numerical simulations
B. Alles, O. Borisenko, Alessandro Papa
The action of the 2d O(3) non-linear sigma model on the lattice in a bath of particles, when expressed in terms of standard O(3) degrees of freedom, is complex. A reformulation of…
QCD flux tubes across the deconfinement phase transition
Paolo Cea, Leonardo Cosmai, Francesca Cuteri +1
We study the behavior across the deconfinement phase transition of the chromoelectric flux tube generated by a static quark and a static antiquark for several distances between the…
Flux tubes in the QCD vacuum
Paolo Cea, Leonardo Cosmai, Francesca Cuteri +1
The hypothesis that the QCD vacuum can be modeled as a dual superconductor is a powerful tool to describe the distribution of the color field generated by a quark-antiquark static…
Flux tubes in QCD with (2+1) HISQ fermions
P. Cea, L. Cosmai, F. Cuteri +1
We investigate the transverse profile of the chromoelectric field generated by a quark-antiquark pair in the vacuum of (2+1) flavor QCD. Monte Carlo simulations are performed adopt…
BKT phase transitions in two-dimensional non-Abelian spin models
Oleg Borisenko, Volodymyr Chelnokov, Francesca Cuteri +1
It is argued that two-dimensional U(N) spin models for any N undergo a BKT-like phase transition, similarly to the famous XY model. This conclusion follows from the Berezinskii-lik…
Flux tubes at finite temperature
Paolo Cea, Leonardo Cosmai, Francesca Cuteri +1
The chromoelectric field generated by a static quark-antiquark pair, with its peculiar tube-like shape, can be nicely described, at zero temperature, within the dual superconductor…
Anatomy of SU(3) flux tubes at finite temperature
Paolo Cea, Leonardo Cosmai, Francesca Cuteri +1
An attempt to adapt the study of color flux tubes to the case of finite temperature has been made. The field is measured both through the correlator of two Polyakov loops, one of w…
Curvature of the pseudocritical line in (2+1)-flavor QCD with HISQ fermions
Paolo Cea, Leonardo Cosmai, Alessandro Papa
We study QCD with (2+1)-HISQ fermions at nonzero temperature and nonzero imaginary baryon chemical potential. Monte Carlo simulations are performed using the MILC code along the li…
Critical line of 2+1 flavor QCD: Toward the continuum limit
Paolo Cea, Leonardo Cosmai, Alessandro Papa
We determine the continuum limit of the curvature of the pseudocritical line of QCD with =2+1 staggered fermions at nonzero temperature and quark density. We perform Monte Car…
London penetration depth and coherence length of SU(3) vacuum flux tubes
Paolo Cea, Leonardo Cosmai, Francesca Cuteri +1
The transverse profile of the chromoelectric field generated by a quark-antiquark pair in the SU(3) vacuum is analysed within the dual superconductor scenario, then the London pene…
Curvature of the QCD critical line with 2+1 HISQ fermions
Paolo Cea, Leonardo Cosmai, Alessandro Papa
We present results on the curvature of the critical line of QCD with 2+1 HISQ fermions at nonzero temperature and quark density obtained by analytic continuation from imaginary che…
Critical behavior and continuum scaling of lattice gauge theories
Oleg Borisenko, Volodymyr Chelnokov, Mario Gravina +1
Three-dimensional lattice gauge theories are studied numerically at finite temperature for = 5, 6, 8, 12, 13, 20 and for =2,4,8. For each model the location of phas…
Behavior near of the mass gap in the 2D O(3) non-linear sigma model
B. Alles, M. Giordano, A. Papa
The validity of the Haldane's conjecture entails that the mass gap of the 2-dimensional O(3) non-linear sigma model with a -term must tend to zero as approaches the value $π…
Phase structure of 3D Z(N) lattice gauge theories at finite temperature: large-N and continuum limits
Oleg Borisenko, Volodymyr Chelnokov, Mario Gravina +1
We study numerically three-dimensional Z(N) lattice gauge theories at finite temperature, for N = 5, 6, 8, 12, 13 and 20 on lattices with temporal extension = 2, 4, 8. For ea…
Flux tubes in the SU(3) vacuum: London penetration depth and coherence length
Paolo Cea, Leonardo Cosmai, Francesca Cuteri +1
Within the dual superconductor scenario for the QCD confining vacuum, the chromoelectric field generated by a static pair can be fitted by a function derived, by du…
On the critical line of 2+1 flavor QCD
Paolo Cea, Leonardo Cosmai, Alessandro Papa
We determine the curvature of the (pseudo)critical line of QCD with =2+1 staggered fermions at nonzero temperature and quark density, by analytic continuation from imaginary c…
A new approach to the two-dimensional -model with a topological charge
C. Torrero, O. Borisenko, V. Kushnir +2
Based on character decomposition, a dual transformation is introduced leading to two formulations of the theory which should allow for a removal/softening of the sign problem in th…
Phase transitions in the three-dimensional Z(N) models
Oleg Borisenko, Volodymyr Chelnokov, Gennaro Cortese +3
Phase transitions in zero-temperature 3D Z(N) lattice gauge theories are studied. We use a cluster algorithm defined for the dual formulation of the models. We also attempt to expl…