Dielectric correction to the chiral magnetic effect
Dielectric correction to the chiral magnetic effect
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DOI：
10.1103/physrevd.82.054001
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发表时间：
2010-04
影响因子：
5
通讯作者：
K. Fukushima;M. Ruggieri
中科院分区：
文献类型：
--
作者：
K. Fukushima;M. Ruggieri
我们推导出存在磁场 B 和手性化学势 {mu}{sub 5} 时的电流密度 j{sub em}。我们证明 j{sub em} 不仅具有异常引起的项 {proportional_to}{mu}{sub 5}B （即手性磁效应），而且还具有来自相互作用效应并以磁化率表示的非异常校正。我们发现修正的特征取决于夸克风味的数量。数值估计的修正结果对重离子碰撞影响很小，但可以通过晶格 QCD 模拟进行测试。
We derive an electric current density j{sub em} in the presence of a magnetic field B and a chiral chemical potential {mu}{sub 5}. We show that j{sub em} has, not only the anomaly-induced term {proportional_to}{mu}{sub 5}B (i.e. chiral magnetic effect), but also a nonanomalous correction which comes from interaction effects and is expressed in terms of the susceptibility. We find the correction characteristically dependent on the number of quark flavors. The numerically estimated correction turns out to be a minor effect on heavy-ion collisions but can be tested by the lattice-QCD simulation.