Two-dimensional composite solitons in Bose-Einstein condensates with spatially confined spin-orbit coupling

Li, Yongyao; Zhang, Xiliang; Zhong, Rong-Xuan; Luo, Zhihuan; Liu, Bin; Huang, Chaoqun; Pang, Wei; Malomed, Boris A.

doi:10.1016/j.cnsns.2019.01.031

Cited by 25 publications

(4 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus it will be interesting to examine if a study similar to that of ours could be envisaged for a 2D BEC [36]. In order that we must look for studies in spin-orbit coupled quasi-2D stable BEC solitons [37].…”

Section: Discussionmentioning

confidence: 91%

Information theoretic approach to effects of spin–orbit coupling in quasi-one-dimensional Bose–Einstein condensates

Sekh¹,

Talukdar²,

Chatterjee³

et al. 2022

Phys. Scr.

View full text Add to dashboard Cite

{We consider a spin-orbit coupled (SOC) one dimensional Bose-Einstein condensate (BEC) with attractive atom-atom interaction and make use of Shannon entropy $(S)$, and Fisher information $(I)$ to study the response of atomic density profiles to changes in $\kappa_L$, the strength of the spin-orbit coupling for fixed values of Rabi frequency $(\Omega)$.} Density profiles of our interest are characterized by (i) $\kappa_L^2<\Omega$ (region 1) and (ii) $\kappa_L^2>\Omega$ (region 2). We also pay attention to a spatially modulated density profile representing stripe phase of the condensate. Our numbers for $S$ and $I$ show that in region 1 the profile becomes localized as $\kappa_L$ increases while in region 2 we observe delocalization. Values of $I$ in the stripe phase provide an evidence for the supersolid properties of the SOC BEC and indicate that supersolidity is a purely quantum phenomenon.

show abstract

Section: Discussionmentioning

confidence: 91%

Information theoretic approach to effects of spin–orbit coupling in quasi-one-dimensional Bose–Einstein condensates

Sekh¹,

Talukdar²,

Chatterjee³

et al. 2022

Phys. Scr.

View full text Add to dashboard Cite

show abstract

“…The dark and bright solitons, quantized vortices dynamics, and Josephson dynamics are also studied in spin-orbit coupled spin-1/2 BECs. [14][15][16][17][18][19][20] In the spinor BECs, the complex atomic interactions give rise to many exotic ground states. For the spin-1 BECs, the mean-field ground state is a polar state with repulsive spinspin interaction (such as 23 Na) and ferromagnetic state with attractive spin-spin interaction (such as 87 Rb).…”

Section: Introductionmentioning

confidence: 99%

Lattice configurations in spin-1 Bose–Einstein condensates with the SU(3) spin–orbit coupling*

Wang

Dong

2020

Chinese Phys. B

View full text Add to dashboard Cite

We consider the SU(3) spin–orbit coupled spin-1 Bose–Einstein condensates in a two-dimensional harmonic trap. The competition between the SU(3) spin–orbit coupling and the spin-exchange interaction results in a rich variety of lattice configurations. The ground-state phase diagram spanned by the isotropic SU(3) spin–orbit coupling and the spin–spin interaction is presented. Five ground-state phases can be identified on the phase diagram, including the plane wave phase, the stripe phase, the kagome lattice phase, the stripe-honeycomb lattice phase, and the honeycomb hexagonal lattice phase. The system undergoes a sequence of phase transitions from the rectangular lattice phase to the honeycomb hexagonal lattice phase, and to the triangular lattice phase in spin-1 Bose–Einstein condensates with anisotrpic SU(3) spin–orbit coupling.

show abstract

“…1, it was predicted that 1D solitons and their bound states may be maintained by means of localized SO interaction [88,89]. Further, it was recently demonstrated that spatially confined SO coupling can be used to maintain stable 2D solitons [90]. A related possibility is the use of effectively 1D and 2D (low-dimensional) SO coupling for the stabilization of, respectively, 2D and 3D solitons (in the full dimension), including a vortex component [91].…”

Section: Introductionmentioning

confidence: 99%

Holding and transferring matter-wave solitons against gravity by spin–orbit-coupling tweezers

Liu¹,

Zhong²,

Chen

et al. 2020

New J. Phys.

Self Cite

View full text Add to dashboard Cite

§ These two authors contributed equally to the workWe consider possibilities to grasp and drag one-dimensional solitons in two-component Bose-Einstein condensates (BECs), under the action of gravity, by tweezers induced by spatially confined spin-orbit (SO) coupling applied to the BEC, with the help of focused laser illumination. Solitons of two types are considered, semi-dipoles and mixed modes. We find critical values of the gravity force, up to which the solitons may be held or transferred by the tweezers. The dependence of the critical force on the magnitude and spatial extension of the localized SO interaction, as well as on the soliton's norm and speed (in the transfer regime), are systematically studied by means of numerical methods, and analytically with the help of a quasi-particle approximation for the soliton. In particular, a noteworthy finding is that the critical gravity force increases with the increase of the transfer speed (i.e., moving solitons are more robust than quiescent ones). Nonstationary regimes are addressed too, by considering abrupt application of gravity to solitons created in the weightless setting. In that case, solitons feature damped shuttle motion, provided that the gravity force does not exceed a dynamical critical value, which is smaller than its static counterpart. The results may help to design gravimeters based on ultracold atoms. * Electronic address: hhzhong115@163.com

show abstract

Two-dimensional composite solitons in Bose-Einstein condensates with spatially confined spin-orbit coupling

Cited by 25 publications

References 58 publications

Information theoretic approach to effects of spin–orbit coupling in quasi-one-dimensional Bose–Einstein condensates

Information theoretic approach to effects of spin–orbit coupling in quasi-one-dimensional Bose–Einstein condensates

Lattice configurations in spin-1 Bose–Einstein condensates with the SU(3) spin–orbit coupling*

Holding and transferring matter-wave solitons against gravity by spin–orbit-coupling tweezers

Contact Info

Product

Resources

About