论文标题

在自旋轨道耦合自旋-1冷凝物中的多环,条纹和超晶状孤子

Multi-ring, stripe, and super-lattice solitons in a spin-orbit coupled spin-1 condensate

论文作者

Adhikari, S. K.

论文摘要

我们在Rashba或Dresselhaus Spin-Orbit(So)偶联的超精细旋转1($ F = 1 $)中使用平均抗铁磁性BOSE-IENSTEIN CORDEN,使用平均抗铁磁性BOSE-IENSTEIN CORNETATE,使用平均型号的抗铁磁性Bose-inderconevskiieeach,我们展示了异国情调的稳定的准二维孤子。对于弱的耦合,孤子是$(-1,0,+1)$或$(+1,0,-1)$ type带有内在涡度的类型,用于rashba或dresselhaus so耦合,括号中的数字在旋转组件中表示旋转组件中的脉动动量$ f_z =+f_z =+f_z =+1,0,0,-1 $ 1,1 $。对于中间的耦合,孤子具有多环结构,可在各个组件中保持上述涡旋。对于较大的耦合,除了在组件密度的带有条带模式的条带孤子外,还发现了具有平方晶格结构的超晶状体孤子,并且总密度没有周期性调节。

We demonstrate exotic stable quasi-two-dimensional solitons in a Rashba or a Dresselhaus spin-orbit (SO) coupled hyperfine spin-1 ($F=1$) trap-less antiferromagnetic Bose-Einstein condensate using the mean-field Gross-Pitaevskii equation. For weak SO coupling, the solitons are of the $(-1,0,+1)$ or $(+1,0,-1)$ type with intrinsic vorticity, for Rashba or Dresselhaus SO coupling, where the numbers in the parentheses denote angular momentum in spin components $F_z= +1,0,-1$, respectively. For intermediate SO coupling, the solitons have multi-ring structure maintaining the above-mentioned vortices in respective components. For larger SO coupling, superlattice solitons with a square-lattice structure in total density are found in addition to stripe solitons with stripe pattern in component densities with no periodic modulation in total density.

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