Lattice QCD computation of the SU(3) string tension critical curve

Cardoso, Marco; Bicudo, Pedro

doi:10.1103/physrevd.85.077501

Cited by 37 publications

(41 citation statements)

References 9 publications

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“…Below the deconfinement critical temperature, this decrease is moderate and is consistent with the widening of the flux tube as already seen in studies at zero temperature [4], moreover the field strength clearly decreases as the temperature increases as expected from the critical curve for the string tension [5]. Above the deconfinement critical temperature, the fields rapidly decrease to zero as the quarks are pulled apart, qualitatively consistent with screened Coulomb-like fields.…”

Section: Discussionsupporting

confidence: 86%

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Flux Tubes at Finite Temperature

Cardoso¹,

Cardoso²,

Bicudo³

2016

Acta Phys. Pol. B Proc. Suppl.

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We show the flux tubes produced by static quark-antiquark, quark-quark and quark-gluon charges at finite temperature. The sources are placed in the lattice with fundamental and adjoint Polyakov loops. We compute the square densities of the chromomagnetic and chromoelectric fields above and below the phase transition. Our results are gauge invariant and produced in pure gauge SU(3). The codes are written in CUDA and the computations are performed with GPUs.

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Section: Discussionsupporting

confidence: 86%

“…The only restriction is R > 2N for this technique to be valid. Moreover, just below the phase transition, we need to make sure that we don't have contaminated configurations as already mentioned in [5]. By plotting the histogram of Polyakov loop history for β = 6.055, Fig.…”

Section: Computation Of the Chromo-fields In The Flux Tubementioning

confidence: 99%

Flux Tubes at Finite Temperature

Cardoso¹,

Cardoso²,

Bicudo³

2016

Acta Phys. Pol. B Proc. Suppl.

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“…This string tension decreases with λ 1 (or β), which is tantamount to increasing temperature at fixed N τ , in accord with full Yang-Mills theory [17,18]. To make the comparison quantitative, we fit our correlator in continuum units with the same ansatz used in [17] (details of the functional form are inspired by string models valid at large distances),…”

Section: Effective T -Dependent String Tensionmentioning

confidence: 88%

Effective lattice Polyakov loop theory vs. full SU(3) Yang-Mills at finite temperature

Bergner

Langelage

Philipsen

2014

J. High Energ. Phys.

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A three-dimensional effective theory of Polyakov loops has recently been derived from Wilson's Yang-Mills lattice action by means of a strong coupling expansion. It is valid in the confined phase up to the deconfinement phase transition, for which it predicts the correct order and gives quantitative estimates for the critical coupling. In this work we study its predictive power for further observables like correlation functions and the equation of state. We find that the effective theory correctly reproduces qualitative features and symmetries of the full theory as the continuum is approached. Regarding quantitative predictions, we identify two classes of observables by numerical comparison as well as analytic calculations: correlation functions and their associated mass scales cannot be described accurately from a truncated effective theory, due to its inherently non-local nature involving long-range couplings. On the other hand, phase transitions and bulk thermodynamic quantities are accurately reproduced by the leading local part of the effective theory. In particular, the effective theory description is numerically superior when computing the equation of state at low temperatures or the properties of the phase transition.

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“…For instance, the free energy and entropy of a probe quark-antiquark pair in this specious-confined phase are in qualitative agreement with ruling lattice QCD estimates. Moreover, an observation that is hard to come by in most holographic models which usually lack the notion of a temperature dependent confined phase: the specious-confined phase predicts a finite string tension at the deconfinement transition temperature, a finding supported by lattice QCD as well [69]. Because of these remarkable properties of the dual boundary theory, one might wonder how this specious confined phase will reflect upon the entanglement entropy.…”

Section: Introductionmentioning

confidence: 99%

Interplay between the holographic QCD phase diagram and entanglement entropy

Dudal

Mahapatra

2018

J. High Energ. Phys.

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In earlier work, we introduced a dynamical Einstein-Maxwell-dilaton model which mimics essential features of QCD (thermodynamics) below and above deconfinement. Although there are some subtle differences in the confining regime of our model as compared to the standard results, we do have a temperature dependent dual metric below T c as well, allowing for a richer and more realistic holographic modeling of the QCD phase structure. We now discuss how these features leave their imprints on the associated entanglement entropy when a strip region is introduced in the various phases. We uncover an even so rich structure in the entanglement entropy, consistent with the thermodynamical transitions, while again uncloaking some subtleties. Thanks to the temperature dependent confining geometry, we can present an original quantitative prediction for the phase diagram in terms of temperature and strip length, reporting a critical end point at the deconfinement temperature. We also generalize to the case with chemical potential. * david.dudal@kuleuven.be † mahapatrasub@nitrkl.ac.in

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Lattice QCD computation of the SU(3) string tension critical curve

Cited by 37 publications

References 9 publications

Flux Tubes at Finite Temperature

Flux Tubes at Finite Temperature

Effective lattice Polyakov loop theory vs. full SU(3) Yang-Mills at finite temperature

Interplay between the holographic QCD phase diagram and entanglement entropy

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