Results 21 to 30 of about 119,533 (279)

The large-N limit of the chiral condensate from twisted reduced models

Journal of High Energy Physics, 2023
We compute the large-N limit of the QCD chiral condensate on the lattice using twisted reduced models, and performing controlled continuum and chiral extrapolations.
Claudio Bonanno, Pietro Butti, Margarita García Peréz, Antonio González-Arroyo, Ken-Ichi Ishikawa, Masanori Okawa   +5 more
doaj   +1 more source

Vacuum structure and string tension in Yang-Mills dimeron ensembles [PDF]

, 2012
We numerically simulate ensembles of SU(2) Yang-Mills dimeron solutions with a statistical weight determined by the classical action and perform a comprehensive analysis of their properties.
Falk Zimmermann, H. Forkel, M. Muller-Preussker   +2 more
semanticscholar   +1 more source

Topological susceptibility of N f = 2 + 1 QCD from staggered fermions spectral projectors at high temperatures

Journal of High Energy Physics, 2022
We compute the topological susceptibility of N f = 2 + 1 QCD with physical quark masses in the high-temperature phase, using numerical simulations of the theory discretized on a space-time lattice.
Andreas Athenodorou, Claudio Bonanno, Claudio Bonati, Giuseppe Clemente, Francesco D’Angelo, Massimo D’Elia, Lorenzo Maio, Guido Martinelli, Francesco Sanfilippo, Antonino Todaro   +9 more
doaj   +1 more source

Investigating QCD Vacuum on the lattice [PDF]

, 2001
Investigations on the structure of QCD vacuum from first principles can be done on the lattice. The mechanism of confinement is an example: results from lattice on it are reviewed.Comment: Presented at the International Workshop "Light cone physics ...
Di Giacomo, A.
core   +3 more sources

Probing the singularities of the Landau-Gauge gluon and ghost propagators with rational approximants

Journal of High Energy Physics, 2023
We employ Padé approximants in the study of the analytic structure of the four-dimensional SU(2) Landau-gauge gluon and ghost propagators in the infrared regime.
D. Boito, A. Cucchieri, C. Y. London, T. Mendes   +3 more
doaj   +1 more source

Topology at the Deconfinement Transition Uncovered by Inverse Blocking in SU(2) Pure Gauge Theory with Fixed Point Action [PDF]

, 1996
Renormalization group transformations as discussed recently in deriving fixed point actions are used to analyse the vacuum structure near to the deconfinement temperature. Monte Carlo configurations are generated using the fixed point action.
't Hooft, Albanese, Alles, Alles, Bietenholz, Blatter, Bomyakov, Bomyakov, Bornyakov, Brower, Brower, Callan, Campostrini, Campostrini, Campostrini, Chernodub, Chernodub, Christou, Chu, Chu, de Forcrand, de Forcrand, de Forcrand, DeGrand, DeGrand, DeGrand, DeGrand, DeGrand, DeGrand, DeGrand, DeGrand, DeGrand, DeGrand, DeGrand, Del Debbio, Del Debbio, Di Giacomo, Di Giacomo, Di Vecchia, Di Vecchia, Di Vecchia, E.-M. Ilgenfritz, Falcioni, Fox, Garcia Perez, Gross, Göckeler, Hart, Ilgenfritz, Ilgenfritz, Ilgenfritz, Kronfeld, Kronfeld, Kronfeld, Kronfeld, Lüscher, M. Feurstein, M. Müller-Preussker, Makhaldiani, Mandelstam, Markum, Münster, Niedermayer, Phillips, S. Thurner, Schäfer, Schäfer, Shuryak, Smit, Smit, Teper, Thurner, Thurner, Veselov   +73 more
core   +2 more sources

Thickness and Color Structure of Center Vortices in Gluonic SU(2) QCD

Particles, 2020
In search for an effective model of quark confinement we study the vacuum of SU(2) quantum chromodynamic with lattice simulations using Wilson action.
Rudolf Golubich, Manfried Faber
doaj   +1 more source

Localization properties of fermions and bosons [PDF]

, 2006
The topological structure of the QCD vacuum can be probed by monitoring the spatial localization of the low-lying Dirac eigenmodes. This approach can be pursued on the lattice, and unlike the traditional one requires no smoothing of the gauge field.
de Forcrand, Philippe
core   +2 more sources

Confinement, vacuum structure: from QCD to quantum gravity [PDF]

, 2010
A minimal Lorentz gauge gravity model with R 2 -type Lagrangian is proposed. In the absence of torsion the model admits a topological phase with unfixed metric. The model possesses a minimal set of dynamical degrees of freedom for the torsion. Remarkably,
D. G. Pak
semanticscholar   +1 more source

The strong CP problem solved by itself due to long-distance vacuum effects

Nuclear Physics B, 2023
The vacuum of quantum chromodynamics has an incredibly rich structure at the nonperturbative level, which is intimately connected with the topology of gauge fields, and put to a test by the strong CP problem.
Y. Nakamura, G. Schierholz
doaj   +1 more source