论文标题

纯量规SU(3)揭开限制:通量管,磁场和磁电流

Unveiling confinement in pure gauge SU(3): flux tubes, fields, and magnetic currents

论文作者

Baker, M., Chelnokov, V., Cosmai, L., Cuteri, F., Papa, A.

论文摘要

夸克限制的特征标志是恒温管中的静态夸克 - 易夸克对之间的染色场的浓度。然而,尚未完全理解这种通量管的结构以及限制力的结构。在这里,我们对SU(3)仪表理论中的蒙特卡洛合奏进行了新的晶格测量。在这些模拟的基础上,我们证明可以使用与麦克斯韦阐明的电磁基本原理的类比来理解限制力。我们得出染色体洛伦兹的力量密度,将染色场耦合到铬磁电流,并在磁通管内部整合该力密度,从而获得麦克斯韦的力,从而在横向方向上挤压磁管。我们表明,这种横向限制力的强度等于从夸克之间的中平面上的铬电场计算得出的弦张力值,从而验证了这两个互补限制图片的一致性。

A characteristic signature of quark confinement is the concentration of the chromoelectric field between a static quark-antiquark pair in a flux tube. However, the structure of this flux tube, and hence of the confining force, has not been completely understood. Here we perform new lattice measurements of field distributions on smeared Monte Carlo ensembles in SU(3) gauge theory. On the basis of these simulations we demonstrate that the confining force can be understood using the analogy with the basic principles of electromagnetism as elucidated by Maxwell. We derive a chromomagnetic Lorentz force density coupling the chromoelectric field to chromomagnetic currents and integrate this force density over the flux tube interior to obtain a Maxwell-like force that squeezes the flux tube in the transverse direction. We show that the strength of this transverse confining force is equal to the value of the string tension calculated numerically from the chromoelectric field on the midplane between the quarks, verifying the consistency of these two complementary pictures of confinement.

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