玻色-爱因斯坦凝聚体间约瑟夫森振荡的相位滑移和涡旋动力学
Phase-slips and vortex dynamics in Josephson oscillations between Bose-Einstein condensates
摘要：
研究了双阱中稀玻色-爱因斯坦凝聚体的约瑟夫森动力学与拓扑激发之间的关系。我们发现，负责自陷制度的相位滑移是由涡环进入和湮灭内的弱链接区域或创建在中心的障碍和系统外扩展。大振幅振荡的发病前的自陷也严格连接的动态的涡环在边缘的井间屏障。我们的研究结果扩展和分析了几十年前提出的有关超导和超流氦系统的“交流”约瑟夫森效应的涡致相位滑移的动力学。
英文摘要：
We study the relation between Josephson dynamics and topological excitations in a dilute Bose-Einstein condensate confined in a double-well trap. We show that the phase slips responsible for the self-trapping regime are created by vortex rings entering and annihilating inside the weak-link region or created at the center of the barrier and expanding outside the system. Large amplitude oscillations just before the onset of self-trapping are also strictly connected with the dynamics of vortex rings at the edges of the inter-well barrier. Our results extend and analyze the dynamics of the vortex-induced phase slippages suggested a few decades ago in relation to the "ac" Josephson effect of superconducting and superfluid helium systems.
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。
