arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2001.05801hep-th
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手征费米子系统的手征磁效应

Chiral magnetic effect for chiral fermion system

Ren-Da Dong, Ren-Hong Fang, De-Fu Hou, Duan She

摘要:

本文利用维格纳函数方法,对手征费米子系统的手征磁效应进行了简明的推导。然后通过详细求解手征费米子的朗道能级,导出手征磁效应。通过二次量子化和系综平均,导出了右手和左手费米子系统的手征磁效应方程。手征磁效应仅来自最低朗道能级的贡献。我们仔细分析了最低朗道能级,发现所有右手(手征为+1)费米子沿正z方向运动,所有左手(手征为-1)费米子沿负z方向运动.从这幅图可以清楚地从微观上解释手征磁效应。

英文摘要:

We concisely derive chiral magnetic effect through Wigner function approach for chiral fermion system. Then we derive chiral magnetic effect through solving the Landau levels of chiral fermions in detail. The procedures of second quantization and ensemble average lead to the equation of chiral magnetic effect for righthand and lefthand fermion systems. Chiral magnetic effect only comes from the contribution of the lowest Landau level. We carefully analyze the lowest Landau level, and find that all righthand (chirality is +1) fermions move along positive z-direction and all lefthand (chirality is -1) fermions move along negative z-direction. From this picture chiral magnetic effect can be explained clearly in a microscopic way.

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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