Limit behavior of attractive Bose-Einstein condensates passing an obstacle

Limit behavior of attractive Bose-Einstein condensates passing an obstacle
复制标题

有吸引力的玻色-爱因斯坦凝聚体通过障碍物的极限行为

DOI:
10.1016/j.jde.2020.10.002
复制
发表时间:
2021-01
影响因子:
2.4
通讯作者:
Xu Liangshun
Xu Liangshun
中科院分区:
数学2区
文献类型:
--
作者:
Deng Yinbin;Guo Yujin;Xu Liangshun

文献摘要

参考文献

相似文献

本文主要研究了平面内吸引玻色-爱因斯坦凝聚(BEC)的基态,它可以用外区域Ω= R2 <$ω中的L2-临界约束极小化问题来描述,其中光滑边界的有界凸区域ω <$R2表示障碍物的区域.证明了极小点(即基态)存在,当且仅当相互作用强度a满足a< a <$=<$Q <$2 2,其中Q> 0是R2中Δ u− u+ u3 = 0的唯一正径向解。如果俘获势V(x)仅沿着整个边界<$Ω达到全局极小,则利用Pohozaev恒等式和精细的能量分析,将极小元的极限行为分析为一个极小点,其中质量集中发生在<$Ω上V(x)的最平坦临界点.
In this paper, we mainly investigate ground states of trapped attractive Bose-Einstein condensates (BEC) passing an obstacle in the plane, which can be described by an L 2-critical constraint minimization problem in an exterior domain Ω= R 2∖ ω, where the bounded convex domain ω⊂ R 2 with smooth boundary denotes the region of the obstacle. It is shown that minimizers (ie ground states) exist, if and only if the interaction strength a satisfies a< a⁎=‖ Q‖ 2 2, where Q> 0 is the unique positive radial solution of Δ u− u+ u 3= 0 in R 2. If the trapping potential V (x) attains its global minima only along the whole boundary∂ Ω, the limit behavior of minimizers is analyzed as a↗ a⁎ by employing the Pohozaev identity and the delicate energy analysis, where the mass concentration occurs at the flattest critical point of V (x) on∂ Ω.
DOI: 10.1103/physreva.62.061601
发表时间: 2000-06
期刊: Physical Review A
影响因子: 2.9
作者:
J. S. Stiessberger;W. Zwerger
通讯作者: J. S. Stiessberger;W. Zwerger
DOI: 10.1007/bf01403504
发表时间: 1982-12
影响因子: 2.4
作者:
T. Cazenave;P. Lions
通讯作者: T. Cazenave;P. Lions
DOI: 10.1007/978-3-0346-0537-3
发表时间: 2011-12
期刊: --
影响因子: --
作者:
V. Volpert
通讯作者: V. Volpert
DOI: 10.1007/978-0-387-74759-0_371
发表时间: 2009
期刊: --
影响因子: --
作者:
S. Simons
通讯作者: S. Simons
具有多阱势的有吸引力的 Gross-Pitaevskii 方程的基态性质
DOI: 10.1088/1361-6544/aa99a8
发表时间: 2018
期刊: Nonlinearity
影响因子: 1.7
作者:
Yujin Guo;Z.-Q. Wang;X. Y. Zeng;H.-S. Zhou
通讯作者: H.-S. Zhou