发表机构
Tokyo University of Science; RIKEN iTHEMS, RIKEN; The University of Osaka（东京科学大学; 理化学研究所 iTHEMS; 大阪大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究在磁化双味色超导夸克物质中发现量子几何迈斯纳效应，强场下响应由最低朗道能级量子度量主导，标度由配对能隙决定，对磁星千赫兹振荡有启示。
AI 中文摘要
我们在磁化的双味色超导（2SC）夸克物质中发现了量子几何迈斯纳响应。朗道量子化抑制了横向准粒子色散，从而抑制了常规费米面贡献，并产生了由朗道能级量子几何主导的迈斯纳响应。在强场区域，该响应由最低朗道能级（LLL）的量子度量主导，横向迈斯纳质量的主要标度因此由配对能隙决定，这与常规色超导体中化学势标度形成对比。这种非常规标度具有拓扑起源，因为LLL量子度量受其陈数约束。减小的横向迈斯纳质量对磁星中的千赫兹准周期振荡具有潜在意义。
英文摘要
We find a quantum-geometric Meissner response in magnetized two-flavor color-superconducting (2SC) quark matter. Landau quantization quenches the transverse quasiparticle dispersion, suppressing the conventional Fermi-surface contribution and giving rise to a Meissner response governed by the quantum geometry of the Landau levels. In the strong-field regime, the response becomes dominated by the quantum metric of the lowest Landau level (LLL), and the leading scaling of the transverse Meissner mass is consequently set by the pairing gap, in contrast to the chemical potential scaling of conventional color superconductors. This unconventional scaling has a topological origin, as the LLL quantum metric is constrained by its Chern number. The reduced transverse Meissner mass provides potential implications for kHz quasi-periodic oscillations in magnetars.
Comments7 pages, 2 figures
