论文标题
超导纳米条的订购和动态阶段的订购和动态阶段的原因和后果
Causes and consequences of ordering and dynamic phases of confined vortex rows in superconducting nanostripes
论文作者
论文摘要
了解超导电路中纳米级限制下涡流的行为对于开发超导电子和量子技术至关重要。在存在磁场的情况下，使用基于金茨堡 - 兰道理论的数值模拟，用于非均匀的超导性，我们详细介绍了横向限制如何在长期超过纳米条件中组织涡流，并呈现涡旋配置的相图作为Stripe宽度和磁场的功能。我们讨论了为什么平均涡流密度降低，并揭示了限制对在来源的电流下的耗散状态中的涡流动力学也有深远的影响，从而绘制出异步和同步涡流行之间的过渡，因为电流随电流而变化。同步横梁特别感兴趣，因为它们在沿条纹沿较高（通常是GHz-to-thz）频率范围的沿条纹下降的电压下降中引起单模调制。
Understanding the behaviour of vortices under nanoscale confinement in superconducting circuits is of importance for development of superconducting electronics and quantum technologies. Using numerical simulations based on the Ginzburg-Landau theory for non-homogeneous superconductivity in the presence of magnetic fields, we detail how lateral confinement organises vortices in a long superconducting nanostripe, and present a phase diagram of vortex configurations as a function of the stripe width and magnetic field. We discuss why average vortex density is reduced and reveal that confinement also has profound influence on vortex dynamics in the dissipative regime under sourced electrical current, mapping out transitions between asynchronous and synchronous vortex rows crossing the nanostripe as the current is varied. Synchronous crossings are of particular interest, since they cause single-mode modulations in the voltage drop along the stripe in a high (typically GHz-to-THz) frequency range.
