论文标题
与平行电场的夸克接触相互作用模型中的手性对称性恢复和解糊化模型
Chiral Symmetry Restoration and Deconfinement in the Contact Interaction Model of Quarks with a Parallel Electric and Magnetic Fields
论文作者
论文摘要
我们研究稳定，均匀和外部并联电场强度（$ ee \ parallel eB $）对手性对称性破坏率和限制 - 连接相变的影响。我们还在有限温度$ t $以及在背景字段的情况下绘制量子染色体动力学（QCD）的相图。我们在这项研究的统一形式主义基于schwinger-dyson方程，夸克的对称矢量触点相互作用模型以及适当的时间正则化方案。在$ t = 0 $的情况下，在纯磁性的情况下（$ ee \ rightarrow 0 $），我们观察到众所周知的磁性催化效果。另一方面，在纯电场背景（$ eb \ rightarrow 0 $）中，电场倾向于恢复手性对称性和伪造的伪电场$ ee^{χ，C} _C $。在存在$ ee $和$ eb $的情况下：我们在特定区域中发现了$ eb $在$ ee $之上的特定区域的磁性催化效应，而当$ ee $站立时，我们观察到手性抑制（或电力性手性旋转）效果。在有限的$ t $中，在纯电场案例中，我们的模型中似乎存在反电催化的现象。另一方面，对于纯磁场背景，我们注意到平均场近似值和与$ EB $依赖性耦合的磁催化作用。 $ ee $ and $ eb $的综合效果对伪 - 临界$ t^{χ，c} _c $的综合效果产生了反电磁催化，而有没有$ eb-eb-ob-依赖性的有效耦合。我们的发现与晶格模拟和QCD的其他可靠有效模型已经预测的结果一致。
We study the impact of steady, homogeneous, and external parallel electric and magnetic field strength ($eE\parallel eB$), on the chiral symmetry breaking-restoration and confinement-deconfinement phase transitions. We also sketch the phase diagram of quantum chromodynamics (QCD) at finite temperature $T$ and in the presence of background fields. Our unified formalism for this study is based on the Schwinger-Dyson equations, symmetry preserving vector-vector contact interaction model of quarks, and the proper time regularization scheme. At $T=0$, in the purely magnetic case ($eE\rightarrow 0$), we observe the well known magnetic catalysis effect. On the other hand, in the pure electric field background ($eB\rightarrow 0$), the electric field tends to restore the chiral symmetry and deconfinement above the pseudo-critical electric field $eE^{χ, C}_c$. In the presence of both $eE$ and $eB$: we find the magnetic catalysis effect in the particular region where $eB$ dominates over $eE$, whereas, we observe the chiral inhibition (or electric chiral rotation) effect, when $eE$ stand over $eB$. At finite $T$, in the pure electric field case, the phenomenon of inverse electric catalysis appears to exist in our model. On the other hand for pure magnetic field background, we notice the magnetic catalysis effect in the mean-field approximation and inverse magnetic catalysis with $eB$-dependent coupling. The combined effect of both $eE$ and $eB$ on the pseudo-critical $T^{χ, C}_c$ yields the inverse electromagnetic catalysis, with and without $eB-$dependent effective coupling of the model. Our findings are satisfactory in agreement with already predicted results by lattice simulations and other reliable effective models of QCD.
