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arXiv 0706.4465hep-ph
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磁等离子体中的电通量管

Electric Flux Tube in Magnetic Plasma

Jinfeng Liao, Edward Shuryak

摘要:

本文研究了作者\cite{Liao_ES_mono}最近提出并发起的一个与磁方案有关的方法学问题:强耦合夸克-胶子等离子体中的电通量管。首先发展了玻色凝聚(双超导体)和经典气体介质之间插值的宏观方法。在此基础上,我们提出了一种基于量子力学计算的微观方法,计算了电通量管上的电磁散射,计算了所有分波的感应电流。正如预期的那样,当粒子可以穿透它时,通量管会失去稳定性:我们通过计算通量管尺寸乘以粒子动量的乘积的临界值来精确计算这个条件,超过这个临界值,通量管就会溶解。晶格静电势表明,通量管似乎溶解在$T>T_{dissolution} \approx 1.3 T_c$。使用我们的标准,人们得到在这个温度下的磁密度$n\approx 4.4 \sim 6.6 fm^{-3}$的估计。

英文摘要:

In this paper we study a methodical problem related to the magnetic scenario recently suggested and initiated by the authors \cite{Liao_ES_mono} to understand the strongly coupled quark-gluon plasma (sQGP): the electric flux tube in monopole plasma. A macroscopic approach, interpolating between Bose condensed (dual superconductor) and classical gas medium is developed first. Then we work out a microscopic approach based on detailed quantum mechanical calculation of the monopole scattering on electric flux tube, evaluating induced currents for all partial waves. As expected, the flux tube looses its stability when particles can penetrate it: we make this condition precise by calculating the critical value for the product of the flux tube size times the particle momentum, above which the flux tube dissolves. Lattice static potentials indicate that flux tubes seem to dissolve at $T>T_{dissolution} \approx 1.3 T_c$. Using our criterion one gets an estimate of the magnetic density $n\approx 4.4 \sim 6.6 fm^{-3}$ at this temperature.

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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