近日，印度科学与教育研究所的Rejish Nath及其研究团队取得一项新进展。经过不懈努力，他们通过凝聚体间偶极-偶极相互作用实现密度调控。相关研究成果已于2024年11月26日在国际知名学术期刊《物理评论A》上发表。

该研究团队研究了由物理上分离的单组分偶极玻色-爱因斯坦凝聚体（BEC）组成的系统中，凝聚体间偶极-偶极相互作用的影响。

特别地，利用偶极-偶极相互作用的长程和各向异性特性，研究人员展示了可以使用被捕获的控制偶极BEC来轴向地约束和调控目标偶极BEC的密度。

增加控制BEC的数量会导致产生奇异的基态结构，包括目标凝聚体中的周期性图案。这些周期性图案显示出单峰和双峰结构之间的结构转变，峰之间的相干性通过控制凝聚体之间的间距来调控。

附：英文原文

Title: Density engineering via intercondensate dipole-dipole interactions

Author: Pranay Nayak, Ratheejit Ghosh, Rejish Nath

Issue&Volume: 2024/11/26

Abstract: We study the effect of intercondensate dipole-dipole interactions in a setup consisting of physically disconnected, single-species dipolar Bose-Einstein condensates. In particular, making use of the long-range and anisotropic nature of dipole-dipole interactions, we show that the density of a target dipolar Bose-Einstein condensate can be axially confined and engineered using a trapped control dipolar condensate. Increasing the number of control condensates leads to exotic ground-state structures, including periodic patterns in the target condensate. These periodic patterns display a structural transition between single- and double-peaked structures with coherence between the peaks controlled via the separation between the control condensates.

DOI: 10.1103/PhysRevA.110.053319

Source: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.110.053319