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arXiv 1308.3333physics.plasm-ph
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高阶电磁陀螺动力学模型

A high-order electromagnetic gyrokinetic model

N. Miyato

摘要:

将平行正则动量作为相空间坐标,对电磁陀螺运动方程进行了高阶推广。在长波长区域,应考虑与导引中心变换相关的高阶位移矢量。这将产生额外的条款,导致修改的gyrokinetic泊松和安培方程的gyrokinetic哈密顿。另外,平行正则动量的导引中心变换的高阶项也应该保留在电磁模型中。高阶部分包含了巴尼奥斯漂移效应,并进一步修正了陀螺运动的安培方程。

英文摘要:

A high-order extension is presented for the electromagnetic gyrokinetic formulation in which the parallel canonical momentum is taken as one of phase space coordinates. The high-order displacement vector associated with the guiding-center transformation should be considered in the long wavelength regime. This yields addtional terms in the gyrokinetic Hamiltonian which lead to modifications to the gyrokinetic Poisson and Ampère equations. In addition, the high-order piece of the guiding-center transformation for the parallel canonical momentum should be also kept in the electromagnetic model. The high-order piece contains the Baños drift effect and further modifies the gyrokinetic Ampère equation.

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