论文标题
非中心超导体中Chandrasekhar-Kendall州的同类
Counterpart of the Chandrasekhar-Kendall state in noncentrosymmetric superconductors
论文作者
论文摘要
我们证明，反转对称性的超导体支持一个自我结磁场的稳定，空间局部构型的家族。这些解决方案是我们称``toroflux''是Chandrasekhar-Kendall状态（Spheromaks）的超导对应物，它们出现在高度指挥，无力的天体物理和核融合等离子体中。在存在与$ o $ $ $点组对称性相关的奇偶校验的LIFSHITZ的情况下，超导曲线是超导模型的解决方案。这些溶液的特征在于磁场的非变化螺旋，也是磁场的环形偶极矩。我们证明，磁偶极子或铁磁包含在大部分非中心对称超导体源的有限能量toroflux溶液中。
We demonstrate that superconductors with broken inversion symmetry support a family of stable, spatially localized configurations of the self-knotted magnetic field. These solutions, that we term ``toroflux,'' are the superconducting counterparts of the Chandrasekhar-Kendall states (spheromaks) that appear in highly conducting, force-free astrophysical and nuclear-fusion plasmas. The superconducting torofluxes are solutions of superconducting models, in the presence of a parity-breaking Lifshitz invariant associated with the $O$ point-group symmetry. These solutions are characterized by a non-vanishing helicity of the magnetic field, and also by a toroidal dipole moment of the magnetic field. We demonstrate that a magnetic dipole or a ferromagnetic inclusion in the bulk of a noncentrosymmetric superconductor sources finite-energy toroflux solutions.
