手性 Maxwell-Carroll-Field-Jackiw 电动力学中的冷等离子体波
Cold plasma waves in the chiral Maxwell-Carroll-Field-Jackiw electrodynamics
AI总结：
本文在手性 Maxwell-Carroll-Field-Jackiw 电动力学框架下研究冷均匀无碰撞等离子体中的波传播与吸收，推导出四种折射率及其对应的圆偏振模式，并揭示了负折射增强旋光本领及旋光符号反转等现象。
摘要：
在这项工作中，我们研究了手性 Maxwell-Carroll-Field-Jackiw（MCJF）电动力学中等离子体波的传播与吸收。针对冷、均匀且无碰撞的流体等离子体模型，我们重写了 Maxwell 方程组，从而能够确定新的折射率和传播模式。考虑一个纯类时 CFJ 背景，该背景扮演磁导手性参数的角色，我们考察了平行于磁场和垂直于磁场传播的情形。集体电磁模式与四个不同的折射率相关联，分别对应右圆偏振波和左圆偏振波。对于每个折射率，我们在一些特定参数取值下展示了传播区和吸收区。在低频区域，我们得到了具有右圆偏振和左圆偏振的修正螺旋波。通过旋光本领（RP）和二向色性系数研究了光学行为。负折射区的存在增强了旋光本领。还观察到 RP 符号反转，这是旋转等离子体的一个特征。
英文摘要：
In this work, we study the propagation and absorption of plasma waves in the chiral Maxwell-Carroll-Field-Jackiw (MCJF) electrodynamics. The Maxwell equations are rewritten for a cold, uniform, and collisionless fluid plasma model, allowing us to determine the new refractive indices and propagating modes. The cases of propagation parallel and orthogonal to the magnetic field are examined considering a purely timelike CFJ background that plays the role of the magnetic conductivity chiral parameter. The collective electromagnetic modes are associated with four distinct refractive indices associated with right-circularly polarized and left-circularly polarized waves. For each index, the propagation and absorption zones are illustrated for some specific parameter values. In low-frequency regime, we have obtained modified helicons with right- and left-circularly polarizations. The optical behavior is investigated by means of the rotatory power (RP) and dichroism coefficient. The existence of a negative refraction zone enhances the rotatory power. It is also observed RP sign reversal, a feature of rotating plasmas.
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