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Related papers: QCD phase structure in strong magnetic fields

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The introduction of non-orthogonal electric and magnetic fields in the QCD vacuum enhances the weight of topological sectors with a nonzero topological charge. For weak fields, there is a linear response for the expectation value of the…

High Energy Physics - Lattice · Physics 2022-12-13 Bastian Brandt , Francesca Cuteri , Gergely Endrődi , José Javier Hernández Hernández , Gergely Markó

We study thermodynamic properties of the QCD vacuum in a magnetic field below chiral phase transition. The hadronic phase free energy in a constant homogeneous magnetic field is calculated in the framework of the chiral perturbation theory…

High Energy Physics - Phenomenology · Physics 2009-11-07 Nikita O. Agasian

We consider the evolution of critical temperature both for the formation of a pion condensate as well as for the chiral transition, from the perspective of the linear sigma model, in the background of a magnetic field. We developed the…

High Energy Physics - Phenomenology · Physics 2014-09-05 Alejandro Ayala , M. Loewe , C. Villavicencio , R. Zamora

Lattice simulations for (2+1)-flavor QCD with external magnetic field demonstrated that the quark mass is one of the important parameters responsible for the (inverse) magnetic catalysis. We discuss the dependences of chiral condensates and…

High Energy Physics - Lattice · Physics 2018-04-18 Akio Tomiya , Heng-Tong Ding , Swagato Mukherjee , Christian Schmidt , Xiao-Dan Wang

We investigate the QCD phase diagram at zero chemical potential and finite temperature in the presence of an external magnetic field within the three flavor Polyakov-Nambu-Jona-Lasinio and entangled Polyakov-Nambu-Jona-Lasinio models…

High Energy Physics - Phenomenology · Physics 2015-08-10 Constança Providência , Márcio Ferreira , Pedro Costa

We calculated the masses of neutral and charged pion and pion decay constants under an extra magnetic field at zero temperature. The quantum fluctuations are integrated through the functional renormalization group. We consider the quark and…

High Energy Physics - Phenomenology · Physics 2024-03-13 Rui Wen , Shi Yin , Wei-jie Fu , Mei Huang

We study the behavior of strongly interacting matter under a strong external magnetic field in the context of chiral quark models that include nonlocal interactions. In particular, we analyze the influence of a constant magnetic field on…

High Energy Physics - Phenomenology · Physics 2018-07-19 D. Gómez Dumm , M. F. Izzo Villafañe , S. Noguera , V. Pagura , N. N. Scoccola

We determine the light meson spectrum in QCD in the presence of background magnetic fields using quenched Wilson fermions. Our continuum extrapolated results indicate a monotonous reduction of the connected neutral pion mass as the magnetic…

High Energy Physics - Lattice · Physics 2018-03-06 Gunnar S. Bali , Bastian B. Brandt , Gergely Endrodi , Benjamin Glaessle

We review results from lattice QCD calculations on the thermodynamics of strong-interaction matter with emphasis on input these calculations can provide to the exploration of the phase diagram and properties of hot and dense matter created…

High Energy Physics - Lattice · Physics 2015-04-24 Heng-Tong Ding , Frithjof Karsch , Swagato Mukherjee

Vacuum of Quantum Chromodynamics in very strong (hadron-scale) magnetic fields exhibits many interesting nonperturbative effects. Some of these effects can be studied with the help of lattice simulations in quenched QCD. We review our…

High Energy Physics - Phenomenology · Physics 2009-09-15 P. V. Buividovich , M. N. Chernodub , E. V. Luschevskaya , M. I. Polikarpov

We present continuum-estimated (2+1)-flavor lattice QCD results for second-order fluctuations of conserved charges and the leading-order equation of state in the presence of strong magnetic fields at nonzero baryon chemical potential, using…

High Energy Physics - Lattice · Physics 2026-04-02 Heng-Tong Ding , Jin-Biao Gu , Arpith Kumar , Sheng-Tai Li

We explore the effect of the magnetic field on the QCD phase transition through AdS/CFT correspondence. By introducing an anisotropic magnetic field in the Einstein-Maxwell-Scalar system, a family of analytic solutions is obtained by the…

High Energy Physics - Theory · Physics 2020-05-05 Song He , Yi Yang , Pei-Hung Yuan

We study the behavior of strongly interacting matter under a uniform intense external magnetic field in the context of nonlocal extensions of the Polyakov-Nambu-Jona-Lasinio model. A detailed description of the formalism is presented,…

High Energy Physics - Phenomenology · Physics 2017-12-22 D. Gomez Dumm , M. F. Izzo Villafañe , S. Noguera , V. P. Pagura , N. N. Scoccola

We propose a physical mechanism for inverse magnetic catalysis, the suppression of the chiral condensate by an external magnetic field in QCD around the critical temperature. We show that this effect, seen in lattice simulations, is a…

High Energy Physics - Lattice · Physics 2013-11-14 Falk Bruckmann , Gergely Endrodi , Tamas G. Kovacs

The catalysis of chiral symmetry breaking by a magnetic field in the massless weak-coupling phase of QED is studied. The dynamical mass of a fermion (energy gap in the fermion spectrum) is shown to depend essentially nonanalytically on the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Valery P. Gusynin

In the framework of Nambu--Jona-Lasinio model beyond mean field approximation, the effects of pion fluctuations on (inverse) magnetic catalysis and magnetic susceptibility are studied. The negative magnetic susceptibility at low temperature…

High Energy Physics - Phenomenology · Physics 2024-09-10 Jie Mei , Rui Wen , Shijun Mao , Mei Huang , Kun Xu

The thermodynamics of quantum chromodynamics at low temperatures and in sufficiently strong magnetic fields is governed by neutral pions. We analyze the interacting system of neutral pions and photons at zero baryon chemical potential using…

High Energy Physics - Phenomenology · Physics 2017-11-20 Tomas Brauner , Saurabh Kadam

The effect of an external magnetic field in QCD phase diagram, namely, in the the location of the critical end point (CEP) is investigated. Using the 2+1 flavor Nambu--Jona-Lasinio model with Polyakov loop, it is shown that when an external…

High Energy Physics - Phenomenology · Physics 2015-09-04 Márcio Ferreira , Pedro Costa , Constança Providência

We give an introduction to the phase structure of QCD matter under rotation based on effective four-fermion models. The effects of the magnetic field on the rotating QCD matter are also explored. Recent developments along these directions…

High Energy Physics - Phenomenology · Physics 2021-08-03 Hao-Lei Chen , Xu-Guang Huang , Jinfeng Liao

The effect of an external magnetic field on the finite temperature transition of QCD is studied. We measure thermodynamic observables including the quark condensates and susceptibilities and the strange quark number susceptibility. We…

High Energy Physics - Lattice · Physics 2011-11-23 G. S. Bali , F. Bruckmann , G. Endrodi , Z. Fodor , S. D. Katz , S. Krieg , A. Schafer , K. K. Szabo