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arXiv 1206.3989hep-phhep-lathep-thnucl-th
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类QCD理论中轻费米子对禁闭跃迁的影响

Effect of Light Fermions on the Confinement Transition in QCD-like Theories

Jinfeng Liao, Edward Shuryak

摘要:

依赖的限制跃迁参数上的费米子内容提供信息的限制机制。格点规范理论的最新进展允许研究它的轻味数$N_f\sim O(10)$,并发现这种转变转向显着更强的耦合。我们提出了一个解释:轻费米子可以通过零模占据色磁单极子,使它们“可区分”,不适合玻色-爱因斯坦凝聚。这种未被占据的单极子的稀释被更强的耦合所补偿,这使得它们更轻,数量更多。我们还认为,在$N_c=2$格点量子色动力学的冷密相中,夸克费米球之外的密度是由携带味道的夸克费米天体引起的。

英文摘要:

Dependence of the confinement transition parameters on the fermion content provides information on the mechanism of confinement. Recent progress in lattice gauge theories has allowed to study it for light flavor number $N_f\sim O(10)$ and found this transition to shift toward significantly stronger coupling. We propose an explanation for that: light fermions can occupy the chromo-magnetic monopoles, via zero modes, making them "distinguishable" and unsuitable for Bose-Einstein Condensation. Such dilution of unoccuplied monopoles is compensated by stronger coupling that makes them lighter and more numerous. We also suggest that flavor-carrying quark-monopole objects account for the density beyond quark Fermi sphere seen in cold dense phase of $N_c=2$ lattice QCD.

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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