AI 中文总结
该研究针对多级非易失性存储的权衡问题，提出基于边界驱动电子流体涡旋的存储器，发现涡旋态吸引子盆地排序与线性稳定谱预测不符，需主动保持功率，为多态存储提供新方向。
AI 中文摘要
多级非易失性存储技术在信息密度、 endurance（ endurance 译为“ endurance”，此处保留英文原名，专业术语）、 retention（ retention 译为“ retention”，保留英文原名）和开关能耗之间存在反复出现的权衡。我们研究一种替代状态变量，基于边界驱动电子流体中自组织涡旋的离散涡旋构型。从磁流体动力学动力学推导的耗散点涡旋模型产生6种可复现的涡旋码字，对应每单元2.585比特，我们量化其写入保真度、噪声敏感性、100次循环 endurance 和有效信息容量。它们的有限振幅盆地半径$r_{50}$的排序与固定环流和完全耦合线性稳定谱的预测均不同。基于简化动力学的非线性鞍点构造也未恢复测量到的盆地排序。该差异与涉及位置-环流耦合动力学的逃逸路径相关，而该路径在固定环流描述中不存在。这些结果表明，仅局部稳定性无法决定所考虑涡旋态的有限扰动容限。所提出的存储器需要主动保持功率，被动 retention 仍待实验确立。
英文摘要
Multilevel non-volatile memory technologies face recurring trade-offs among information density, endurance, retention, and switching energy. We investigate an alternative state variable based on the discrete vortex configuration of self-organized vortices in a boundary-driven electron fluid. A dissipative point-vortex model derived from magnetohydrodynamic dynamics yields six reproducible vortex codewords, corresponding to 2.585 bits per cell, whose write fidelity, noise sensitivity, 100-cycle endurance, and effective information capacity are quantified. The ordering of their finite-amplitude basin radii $r_{50}$ differs from that predicted by both fixed-circulation and fully coupled linear-stability spectra. A nonlinear saddle-point construction based on the reduced dynamics likewise does not recover the measured basin ordering. The discrepancy is associated with escape pathways involving coupled position--circulation dynamics that are absent from the fixed-circulation description. These results show that local stability alone does not determine the finite perturbation tolerance of the vortex states considered here. The proposed memory requires active hold power, and passive retention remains to be established experimentally.
Comments8 pages, 9 figures
