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Related papers: Localization with overlap fermions

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In this paper we study the localization transition of Dirac eigenmodes in quenched QCD. We determined the temperature dependence of the mobility edge in the quark-gluon plasma phase near the deconfining critical temperature. We calculated…

High Energy Physics - Lattice · Physics 2018-11-06 Tamas G. Kovacs , Reka A. Vig

We study the Anderson-like localization transition in the spectrum of the Dirac operator of quenched QCD. Above the deconfining transition we determine the temperature dependence of the mobility edge separating localized and delocalized…

High Energy Physics - Lattice · Physics 2019-01-04 Tamas G. Kovacs , Reka A Vig

We study the localization properties of the low-lying Dirac eigenmodes in QCD at imaginary chemical potential $\hat{\mu}_I=\pi$ at temperatures above the Roberge-Weiss transition temperature $T_{\rm RW}$. We find that modes are localized up…

High Energy Physics - Lattice · Physics 2022-01-26 Marco Cardinali , Massimo D'Elia , Francesco Garosi , Matteo Giordano

It is known that the deconfining transition of QCD is accompanied by the appearance of localized eigenmodes at the low end of the Dirac spectrum. In the quenched case localization appears exactly at the critical temperature of…

High Energy Physics - Lattice · Physics 2022-02-01 Tamas G. Kovacs

It was previously found that at high temperature the lowest part of the QCD Dirac spectrum consists of localized modes obeying Poisson statistics. Higher up in the spectrum, modes become delocalized and their statistics can be described by…

High Energy Physics - Lattice · Physics 2013-11-08 Matteo Giordano , Tamás G. Kovács , Ferenc Pittler

We study the localization properties of the low-lying Dirac eigenmodes in QCD near the crossover temperature, using staggered fermions on the lattice. We find that localized low modes, absent at low temperature, appear at a temperature…

High Energy Physics - Lattice · Physics 2026-02-19 Matteo Giordano , Tamas G. Kovacs , Ferenc Pittler

It is by now well established that Dirac fermions coupled to non-Abelian gauge theories can undergo an Anderson-type localization transition. This transition affects eigenmodes in the lowest part of the Dirac spectrum, the ones most…

High Energy Physics - Lattice · Physics 2021-06-17 Matteo Giordano , Tamas G. Kovacs

The low-lying Dirac modes become localised at the finite-temperature transition in QCD and in other gauge theories, suggesting a general connection between their localisation and deconfinement. The simplest model where this connection can…

High Energy Physics - Lattice · Physics 2021-10-29 György Baranka , Matteo Giordano

At high temperature part of the spectrum of the quark Dirac operator is known to consist of localized states. This comes about because around the crossover temperature to the quark-gluon plasma localized states start to appear at the low…

High Energy Physics - Lattice · Physics 2019-01-04 Tamas G. Kovacs , Reka A. Vig

Ample numerical evidence from lattice calculations shows a strong connection between the confining properties of gauge theories at finite temperature and the localisation properties of the low-lying Dirac eigenmodes. In this contribution we…

High Energy Physics - Lattice · Physics 2023-01-11 Marco Cardinali , Massimo D'Elia , Francesco Garosi , Matteo Giordano

Chiral Random Matrix Theory has proven to describe the spectral properties of low temperature QCD very well. However, at temperatures above the chiral symmetry restoring transition it can not provide a global description. The level-spacing…

High Energy Physics - Lattice · Physics 2018-10-03 Lukas Holicki , Ernst-Michael Ilgenfritz , Lorenz von Smekal

At zero temperature the lowest part of the spectrum of the QCD Dirac operator is known to consist of delocalized modes that are described by random matrix statistics. In the present paper we show that the nature of these eigenmodes changes…

High Energy Physics - Lattice · Physics 2013-05-30 Tamas G. Kovacs , Ferenc Pittler

We review the present status of the Anderson transition in the spectrum of the Dirac operator of QCD-like theories on the lattice. Localized modes at the low-end of the spectrum have been found in SU(2) Yang-Mills theory with overlap and…

High Energy Physics - Lattice · Physics 2015-06-22 Matteo Giordano , Tamas G. Kovacs , Ferenc Pittler

Finite temperature lattice QCD is probed by varying the temporal boundary conditions of the fermions. We develop the emerging physical behavior in a study of the quenched case and subsequently present first results for a fully dynamical…

High Energy Physics - Lattice · Physics 2010-04-30 Erek Bilgici , Falk Bruckmann , Julia Danzer , Christof Gattringer , Christian Hagen , Ernst Michael Ilgenfritz , Axel Maas

The QCD Anderson transition is believed to be connected to both deconfinement and chiral crossovers. These crossovers are substantially affected when external magnetic fields ($B$) are present, most prominently, e.g., via magnetic catalysis…

High Energy Physics - Lattice · Physics 2026-04-03 Robin Kehr , Adeilton Dean Marques Valois , Lorenz von Smekal

We study physics at temperatures just above the QCD phase transition (Tc) using chiral (overlap) Fermions in the quenched approximation of lattice QCD. Exact zero modes of the overlap Dirac operator are localized and their frequency of…

High Energy Physics - Lattice · Physics 2011-07-19 Rajiv V. Gavai , Sourendu Gupta , R. Lacaze

I study the localisation properties of low Dirac eigenmodes in 2+1 dimensional SU(3) pure gauge theory, both in the low-temperature, confined and chirally-broken phase and in the high-temperature, deconfined and chirally-restored phase, by…

High Energy Physics - Lattice · Physics 2019-06-26 Matteo Giordano

We study the localization properties of the eigenmodes of the staggered Dirac operator in finite-temperature $\mathbb{Z}_2$ pure gauge theory on the lattice in 2+1 dimensions. We find that the low modes turn from delocalized to localized as…

High Energy Physics - Lattice · Physics 2021-10-04 György Baranka , Matteo Giordano

We study the chiral polarization properties of low-lying Dirac eigenmodes at finite temperature using the overlap operator. Results for pure gauge theory on both sides of deconfinement phase transition are presented. We find that the…

High Energy Physics - Lattice · Physics 2012-11-13 Andrei Alexandru , Ivan Horváth

We study the localization properties of the eigenmodes of the staggered Dirac operator across the deconfinement transition in finite-temperature $\mathbb{Z}_3$ pure gauge theory on the lattice in 2+1 dimensions. This allows for nontrivial…

High Energy Physics - Lattice · Physics 2022-12-07 György Baranka , Matteo Giordano
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