AI 中文总结
该研究探讨含中心缺陷势的一维二元超稀量子液滴，揭示其极化转变、激发谱特性及临界原子数规律，还呈现了两分量液滴的局域化与碎片化动力学。
AI 中文摘要
我们研究了存在中心缺陷势的一维超稀二元量子液滴混合物。缺陷势强度与原子数的性质呈现出不同的极化转变和低能集体激发谱。吸引性的Lee-Huang-Yang量子涨落与排斥性平均场相互作用的平衡，会在势阱中形成自束缚量子液滴；而势垒则会引发随原子数变化的极化转变，这在激发谱中表现为准粒子模式的不连续性与软化。我们发现，该转变对应的临界原子数会随组间吸引相互作用的增强而降低。最后，对势垒与势阱中相互作用的淬火时间动力学研究，展示了两分量系统的局域化及扩散性碎片化液滴。
英文摘要
We examine a one-dimensional binary mixture of ultradilute quantum droplets in the presence of a central potential defect. The properties of the potential strength and the number of atoms exhibit distinct polarization transitions and low-lying ollective excitation spectra. The balance of (attractive) Lee-Huang-Yang quantum fluctuations and repulsive mean-field interactions results in a self-bound quantum droplet in a potential well. However, the potential barrier causes the polarization transition with the number of atoms, which is reflected in the excitation spectrum as a discontinuity and softening of the quasiparticle modes. We reveal that the critical number of atoms for the transition decreases as the attractive intercomponent interaction increases. Finally, the quench time dynamics of the interaction in potential barrier and well show the localization and diffusive fragmented droplets of two-component systems.
Comments10 pages, 9 figures
