Angular stripe phase in spin-orbital-angular-momentum coupled Bose condensates

  title={Angular stripe phase in spin-orbital-angular-momentum coupled Bose condensates},
  author={Xiao-Long Chen and Shi-Guo Peng and Peng Zou and Xiaji Liu and Hui Hu},
  journal={arXiv: Quantum Gases},
We propose that novel superfluid with supersolid-like properties - angular stripe phase - can be realized in a two-dimensional spin-1/2 Bose gas with spin-orbital-angular-momentum coupling. We predict a rich ground-state phase diagram, including the vortex-antivortex pair phase, half-skyrmion phase, and two different angular stripe phases. The stripe phases feature modulated angular density-density correlation with sizable contrast and can occupy a relatively large parameter space. The low… 

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