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We calculate anomaly induced conductivities from a holographic gauge theory model using Kubo formulas, making a clear conceptual distinction between thermodynamic state variables such as chemical potentials and external background fields.…

高能物理 - 理论 · 物理学 2011-03-03 A. Gynther , K. Landsteiner , F. Pena-Benitez , A. Rebhan

We explore the topological susceptibility at finite quark chemical potential and zero temperature in two-color QCD (QC$_2$D) with two flavors. Through the Ward-Takahashi identities of QC$_2$D, we find that the topological susceptibility in…

高能物理 - 唯象学 · 物理学 2023-09-22 Mamiya Kawaguchi , Daiki Suenaga

We construct the effective potential for a QCD-like theory using the auxiliary field method. The chiral phase transition exhibited by the model at finite temperature and the quark chemical potential is studied from the viewpoint of the…

高能物理 - 唯象学 · 物理学 2016-09-06 Y. Hashimoto , Y. Tsue , H. Fujii

We propose a chiral random matrix model which properly incorporates the flavor-number dependence of the phase transition owing to the \UA(1) anomaly term. At finite temperature, the model shows the second-order phase transition with…

高能物理 - 唯象学 · 物理学 2009-08-18 T. Sano , H. Fujii , M. Ohtani

We investigate the effects of anisotropy on the chiral condensate in a holographic model of QCD with a fully backreacted quark sector at vanishing chemical potential. The high temperature deconfined phase is a neutral and anisotropic plasma…

高能物理 - 理论 · 物理学 2020-08-05 Umut Gursoy , Matti Jarvinen , Govert Nijs , Juan F. Pedraza

Chiral anomaly modifies the scattering processes in chiral systems which can be computed using the Maxwell-Chern-Simons theory that couples electrodynamics to the pseudoscalar field $\theta$ describing the topological charge induced be…

高能物理 - 唯象学 · 物理学 2020-08-12 Kirill Tuchin

Due to the Weyl anomaly, an axial vector field produces novel anomalous chiral currents in spacetime with boundaries. Remarkably, the chiral current is not invariant under the gauge transformation of axial vector fields. As a result, more…

高能物理 - 理论 · 物理学 2023-01-18 Rong-Xin Miao , Yu-Qian Zeng

We discuss homogeneous nucleation in a first-order chiral phase transition within an effective field theory approach to low-energy QCD. Exact decay rates and bubble profiles are obtained numerically and compared to analytic results obtained…

高能物理 - 唯象学 · 物理学 2009-10-31 O. Scavenius , A. Dumitru , E. S. Fraga , J. T. Lenaghan , A. D. Jackson

We study the quark-mass dependence of the QCD critical point at varying bare up/down quark masses with fixed strange quark mass. We explore the corresponding second-order critical surface in the three-dimensional Columbia plot and study the…

高能物理 - 唯象学 · 物理学 2025-08-06 Julian Bernhardt , Christian S. Fischer

We consider an improved soft-wall AdS/QCD model coupled to an Einstein-dilaton system, which offers a way to study the deconfining and chiral transitions simultaneously. The correlation between these two transitions has been investigated in…

高能物理 - 唯象学 · 物理学 2022-03-02 Ying-Ying Li , Xing-Lin Liu , Xin-Yi Liu , Zhen Fang

In my master thesis, I investigated the chiral-magnetic effect in the context of holography; I focused in especially on the impact of the chiral anomaly at transport properties and non-equilbrium behaviour in response to an holographic…

高能物理 - 理论 · 物理学 2017-11-23 Sebastian Grieninger

We study the electromagnetic properties of dense QCD in the so-called Magnetic Dual Chiral Density Wave phase. This inhomogeneous phase exhibits a nontrivial topology that comes from the fermion sector due to the asymmetry of the lowest…

核理论 · 物理学 2018-04-24 E. J. Ferrer , V. de la Incera

We study the magnetoconductivity induced by the axial anomaly via the chiral magnetic effect in strongly coupled holographic models. An important ingredient in our models is that the axial charge is non-conserved beyond the axial anomaly.…

高能物理 - 理论 · 物理学 2015-05-05 Amadeo Jimenez-Alba , Karl Landsteiner , Yan Liu , Ya-Wen Sun

A simple holographic model is presented and analyzed that describes chiral symmetry breaking and the physics of the meson sector in QCD. This is a bottom-up model that incorporates string theory ingredients like tachyon condensation which…

高能物理 - 唯象学 · 物理学 2010-12-09 Ioannis Iatrakis , Elias Kiritsis , Angel Paredes

We discuss the influence of a helicity imbalance on the phase diagram of dense QCD at finite temperature. We argue that the helical chemical potential is a thermodynamically relevant quantity in theories with the mass gap generation. Using…

高能物理 - 理论 · 物理学 2021-05-19 M. N. Chernodub , Victor E. Ambrus

We show how to incorporate chiral symmetry breaking in the soft-wall version of the AdS/QCD model by using a modified dilaton profile and a quartic term in the bulk scalar potential. This allows one to separate the dependence on spontaneous…

高能物理 - 唯象学 · 物理学 2010-04-23 Tony Gherghetta , Joseph I. Kapusta , Thomas M. Kelley

We perform a complete one-loop calculation of meson-meson scattering, and of the scalar and pseudoscalar form factors in U(3) chiral perturbation theory with the inclusion of explicit resonance fields. This effective field theory takes into…

高能物理 - 唯象学 · 物理学 2015-06-04 Zhi-Hui Guo , J. A. Oller , J. Ruiz de Elvira

We investigate the nature of the finite-temperature chiral transition in QCD with two light flavors, in the case of an effective suppression of the the U(1)_A symmetry breaking induced by the axial anomaly, which implies the symmetry…

高能物理 - 格点 · 物理学 2015-07-01 Andrea Pelissetto , Ettore Vicari

We study the influence of the chiral phase transition on the chiral magnetic effect. The chiral electric current density along the magnetic field, the electric charge difference between on each side of the reaction plane, and the azimuthal…

高能物理 - 唯象学 · 物理学 2015-05-18 Wei-jie Fu , Yu-xin Liu , Yue-liang Wu

The identification of unconventional pairing in two-dimensional materials is a central challenge in modern condensed matter physics. While chiral p-wave superconductivity offers a promising platform for topological quantum computing, its…

超导电性 · 物理学 2026-05-22 A. N. Osipov , V. N. Ivanova , V. M. Kovalev , I. G. Savenko