Nonequilibrium chiral magnetic/vortical effects in viscous fluids
Nonequilibrium chiral magnetic/vortical effects in viscous fluids
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DOI：
10.1103/physrevd.98.016012
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发表时间：
2018-01
影响因子：
5
通讯作者：
Y. Hidaka;Di-Lun Yang
中科院分区：
文献类型：
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作者：
Y. Hidaka;Di-Lun Yang
我们在弛豫时间(RT)近似下利用手征动力学理论(CKT)研究了具有粘性效应的手性流体的非线性反常响应。与平衡情况不同，我们发现手征磁效应(CME)和手征涡旋效应(CVE)被剪切强度和体强度所修正。特别是，剪切强度可以导致CME和CVE的荷电霍尔电流，这些电流垂直于外加磁场和涡度传播。这些由侧跳和反常引起的量子修正是耗散的，与相互作用有关。此外，我们还证明了基于CKT与经典RT近似的匹配条件，能量密度流的非平衡修正应该为零。虽然电荷电流的非平衡效应是耗散的，但仍然满足热力学第二定律。
We utilize the chiral kinetic theory (CKT) in a relaxation-time (RT) approximation to investigate the nonlinear anomalous responses of chiral fluids with viscous effects. Unlike the cases in equilibrium, it is found that the chiral magnetic effect (CME) and chiral vortical effect (CVE) are modified by the shear and bulk strengths. Particularly, the shear strength could result in charged Hall currents for CME and CVE, which propagate perpendicular to applied magnetic fields and vorticity. These quantum corrections stemming from side jumps and anomalies are dissipative and pertinent to interactions. Moreover, we show that the non-equilibrium corrections for the energy-density current should vanish based on the matching condition obtained from the CKT with the classical RT approximation. Although the non-equilibrium effects upon charge currents are dissipative, the second law of thermodynamics is still satisfied.