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arXiv 1707.05045hep-phhep-lathep-thnucl-th
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重夸克的拖曳力与空间弦张力

Drag Force on Heavy Quarks and Spatial String Tension

Oleg Andreev

摘要:

强耦合夸克-胶子等离子体中的重夸克输运系数可以用规范/弦对偶和格点量子色动力学计算。通过这种对偶性,我们可以论证,对于低动量,重夸克的阻力系数与空间弦张力成正比。这种张力在格点上得到了很好的研究,它允许人们直接对临界点附近的重夸克扩散系数进行非微扰估计。所得结果与文献结果一致。

英文摘要:

Heavy quark transport coefficients in a strongly coupled Quark-Gluon Plasma can be evaluated using a gauge/string duality and lattice QCD. Via this duality, one can argue that for low momenta the drag coefficient for heavy quarks is proportional to the spatial string tension. Such a tension is well studied on the lattice that allows one to straightforwardly make non-perturbative estimates of the heavy quark diffusion coefficients near the critical point. The obtained results are consistent with those in the literature.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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