scholarly journals Inverse magnetic catalysis from improved holographic QCD in the Veneziano limit

2017 ◽  
Vol 2017 (3) ◽  
Author(s):  
Umut Gürsoy ◽  
Ioannis Iatrakis ◽  
Matti Järvinen ◽  
Govert Nijs
Keyword(s):  
Magnetic Catalysis ◽  
Holographic Qcd

scholarly journals Holographic QCD and magnetic fields

2021 ◽  
Vol 57 (7) ◽  
Author(s):  
Umut Gürsoy
Keyword(s):  
Magnetic Fields ◽  
Ground State ◽  
Chemical Potential ◽  
Chiral Condensate ◽  
Magnetic Catalysis ◽  
Large N ◽  
Field Temperature ◽  
Holographic Qcd ◽  
Quark Potential ◽  
Holographic Approach

AbstractWe review the holographic approach to electromagnetic phenomena in large N QCD. After a brief discussion of earlier holographic models, we concentrate on the improved holographic QCD model extended to involve magnetically induced phenomena. We explore the influence of magnetic fields on the QCD ground state, focusing on (inverse) magnetic catalysis of chiral condensate, investigate the phase diagram of the theory as a function of magnetic field, temperature and quark chemical potential, and, finally discuss effects of magnetic fields on the quark–anti-quark potential, shear viscosity, speed of sound and magnetization.

scholarly journals Inverse magnetic catalysis in bottom-up holographic QCD

2016 ◽  
Vol 94 (7) ◽  
Author(s):  
Nick Evans ◽  
Carlisson Miller ◽  
Marc Scott
Keyword(s):  
Bottom Up ◽  
Magnetic Catalysis ◽  
Holographic Qcd

scholarly journals Magnetic catalysis and the chiral condensate in holographic QCD

2020 ◽  
Vol 2020 (10) ◽  
Author(s):  
Alfonso Ballon-Bayona ◽  
Jonathan P. Shock ◽  
Dimitrios Zoakos
Keyword(s):  
Magnetic Field ◽  
Symmetry Breaking ◽  
Chiral Symmetry ◽  
Chiral Limit ◽  
Chiral Symmetry Breaking ◽  
Free Energy Density ◽  
Chiral Condensate ◽  
Zero Magnetic Field ◽  
Magnetic Catalysis ◽  
Holographic Qcd

Abstract We investigate the effect of a non-zero magnetic field on the chiral condensate using a holographic QCD approach. We extend the model proposed by Iatrakis, Kiritsis and Paredes in [1] that realises chiral symmetry breaking dynamically from 5d tachyon condensation. We calculate the chiral condensate, magnetisation and susceptibilities for the confined and deconfined phases. The model leads, in the probe approximation, to magnetic catalysis of chiral symmetry breaking in both confined and deconfined phases. In the chiral limit, mq = 0, we find that in the deconfined phase a sufficiently strong magnetic field leads to a second order phase transition from the chirally restored phase to a chirally broken phase. The transition becomes a crossover as the quark mass increases. Due to a scaling in the temperature, the chiral transition will also be interpreted as a transition in the temperature for fixed magnetic field. We elaborate on the relationship between the chiral condensate, magnetisation and the (magnetic) free energy density. We compare our results at low and moderate temperatures with lattice QCD results.

scholarly journals Response of holographic QCD to electric and magnetic fields

2008 ◽  
Vol 2008 (05) ◽  
pp. 007-007 ◽  
Author(s):  
Oren Bergman ◽  
Gilad Lifschytz ◽  
Matthew Lippert
Keyword(s):  
Magnetic Fields ◽  
Electric And Magnetic Fields ◽  
Holographic Qcd

scholarly journals Gluodynamics and deconfinement phase transition under rotation from holography

2021 ◽  
Vol 2021 (7) ◽  
Author(s):  
Xun Chen ◽  
Lin Zhang ◽  
Danning Li ◽  
Defu Hou ◽  
Mei Huang
Keyword(s):  
Phase Transition ◽  
Angular Velocity ◽  
Chemical Potential ◽  
Entropy Density ◽  
Thermodynamic Quantities ◽  
Strongly Coupled ◽  
Trace Anomaly ◽  
Holographic Qcd ◽  
Deconfinement Phase Transition ◽  
Small Chemical

Abstract We investigate rotating effect on deconfinement phase transition in an Einstein-Maxwell-Dilaton (EMD) model in bottom-up holographic QCD approach. By constructing a rotating black hole, which is supposed to be dual to rotating strongly coupled nuclear matter, we investigate the thermodynamic quantities, including entropy density, pressure, energy density, trace anomaly, sound speed and specific heat for both pure gluon system and two-flavor system under rotation. It is shown that those thermodynamic quantities would be enhanced by large angular velocity. Also, we extract the information of phase transition from those thermodynamic quantities, as well as the order parameter of deconfinement phase transition, i.e. the loop operators. It is shown that, in the T − ω plane, for two-flavor case with small chemical potential, the phase transition is always crossover. The transition temperature decreases slowly with angular velocity and chemical potential. For pure gluon system with zero chemical potential, the phase transition is always first order, while at finite chemical potential a critical end point (CEP) will present in the T − ω plane.

scholarly journals Isoscalar mesons and exotic states in light front holographic QCD

2019 ◽  
Vol 99 (11) ◽  
Author(s):  
Liping Zou ◽  
Hans Günter Dosch ◽  
Guy F. de Téramond ◽  
Stanley J. Brodsky
Keyword(s):  
Light Front ◽  
Exotic States ◽  
Holographic Qcd

scholarly journals Dynamical instability of holographic QCD at finite density

2011 ◽  
Vol 83 (10) ◽  
Author(s):  
Wu-Yen Chuang ◽  
Shou-Huang Dai ◽  
Shoichi Kawamoto ◽  
Feng-Li Lin ◽  
Chen-Pin Yeh
Keyword(s):  
Dynamical Instability ◽  
Finite Density ◽  
Holographic Qcd

scholarly journals Comments on baryons in holographic QCD

2009 ◽  
Vol 2009 (01) ◽  
pp. 053-053 ◽  
Author(s):  
Shigenori Seki ◽  
Jacob Sonnenschein
Keyword(s):  
Holographic Qcd

scholarly journals Threefold complementary approach to holographic QCD

2014 ◽  
Vol 729 ◽  
pp. 3-8 ◽  
Author(s):  
Stanley J. Brodsky ◽  
Guy F. de Téramond ◽  
Hans Günter Dosch
Keyword(s):  
Complementary Approach ◽  
Holographic Qcd
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