Dynamics of quantum droplets in a one-dimensional optical lattice
Dynamics of quantum droplets in a one-dimensional optical lattice
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一维光学晶格中量子液滴的动力学
DOI：
10.1016/j.cnsns.2019.104881
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发表时间：
2019-11
影响因子：
3.9
通讯作者：
Zhong Honghua
中科院分区：
文献类型：
--
作者：
Zhou Zheng;Yu Xi;Zou Yu;Zhong Honghua
We numerically investigate the dynamics of quantum droplets (QDs) forming in one-dimensional (1D) binary Bose gases held in optical lattice (OL). It is found that the OL potential strongly influence the stability of QDs. We demonstrate that both off-site QDs of ground states for the condensate normNexceeding a critical value and on-site QDs of ground states regardless of the value ofNare completely stable. The unstable off-site QDs of ground states in Guassian-shaped QDs may become stable by increasing the value of the self-interaction strengthg. We further study the stability of dipole-model QDs. In contrast to the usual case of propagation in free space, where dipole-model QDs do not exist, we show that Guassian-shaped QDs can support stable dipole-model QDs in the presence of OL. The off-site dipole-model QDs in the large QDs are able to eliminate the decay and become stable by decreasinggto a suitable parametric region. Finally, we deal with the mobility and collision of QDs in OL. It is revealed that OL potential can destroy the slow-moving QDs radiating many linear modes, while the fast-moving QDs may be robust across the OL. Compared with the quasi-elastic collision of Gaussian-shaped QDs in free space, the slowly moving Gaussian-shaped QDs in shallow OL tend to merge after the collision.
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DOI：
10.1103/physreve.71.016613
发表时间：
2005
期刊：
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子：
--
作者：
I. Merhasin;B. Gisin;R. Driben;B. Malomed
通讯作者：
I. Merhasin;B. Gisin;R. Driben;B. Malomed
用于二维和三维可变系数广义非线性薛定谔方程的无条件稳定线性化 CCD-ADI 方法
影响因子：
2.9
作者：
He Dongdong;Pan Kejia
通讯作者：
Pan Kejia
影响因子：
8.6
作者：
Kartashov, Yaroslav V.;Malomed, Boris A.;Torner, Lluis
通讯作者：
Torner, Lluis
影响因子：
2.9
作者：
F. Wächtler;Luis Santos
通讯作者：
F. Wächtler;Luis Santos
影响因子：
1
作者：
B. Gisin;R. Driben;B. Malomed;I. Merhasin
通讯作者：
B. Gisin;R. Driben;B. Malomed;I. Merhasin