对隙的介观涨落
Mesoscopic Fluctuations of the Pairing Gap
摘要：
基于周期轨道理论，给出了有限尺寸量子系统中对能隙的介观涨落的描述。波动的大小取决于相当一般的性质。我们区分相应的经典运动是定期或混乱的系统，并详细描述BCS间隙的波动作为系统的大小的函数。该理论适用于不同的介观系统：原子核，金属颗粒和超冷费米子气体。我们还提出了一个详细的描述的配对间隙的变化与粒子数的基础上变形腔势的核。
英文摘要：
A description of mesoscopic fluctuations of the pairing gap in finite-sized quantum systems based on periodic orbit theory is presented. The size of the fluctuations are found to depend on quite general properties. We distinguish between systems where corresponding classical motion is regular or chaotic, and describe in detail fluctuations of the BCS gap as a function of the size of the system. The theory is applied to different mesoscopic systems: atomic nuclei, metallic grains, and ultracold fermionic gases. We also present a detailed description of pairing gap variation with particle number for nuclei based on a deformed cavity potential.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
