Self-organization and anomalous transport phenomena in solar coronal plasmas

该项目的目的是研究自组织现象，这种现象决定了在电流驱动的不稳定性的非线性阶段由于相空间结构而引起的等温无碰撞热空间等离子体的宏观输运性质。为了适当地模拟这个问题，我们计划将我们新开发的未分裂欧拉静电1D1V（一个空间，一个速度空间维度）Vlasov代码扩展到更高的维度，以包括电磁效应。这将使我们能够研究电磁和斜传播波模式以及由于压力梯度across电流片的不稳定性。该项目的最终目标是推导出太阳日冕等离子体中的异常电阻率，然后通过微观动量交换率的理论计算，基于微观等离子体湍流引起的非线性结构的动力学描述，以推导出依赖于宏观等离子体参数的宏观输运系数，这些参数应该被纳入流体模型，例如日冕重联和太阳粒子加速到高能量。

The project aims at the investigation of the self-organization phenomena determining the macroscopic transport properties of isothermal collisionless hot space plasmas induced due to phase space structuring at the nonlinear stage of current-driven instabilities. To simulate this problem appropriately we plan to extend our newly developed unsplit Eulerian electrostatic 1D1V (one spatial, one velocity space dimension) Vlasov code to higher dimensions in order to include electromagnetic effects. This will enable us to study also electromagnetic and obliquely propagating wave modes as well as instabilities due to pressure gradients accross current sheets. The ultimate goal of this project is the derivation of the anomalous resistivity in solar coronal plasmas and than by theoretical calculation of the microscopic momentum exchange rates, based on a kinetic description of nonlinear structuring due to microscopic plasma turbulence, in order to derive macroscopic transport coefficients in dependence on macroscopic plasma parameters are supposed to be incorporated in fluid models of, e.g. reconnection in the solar corona and of solar particle acceleration to high energies.