Spin rotons and supersolids in binary antidipolar condensates

by W. Kirkby, T. Bland, F. Ferlaino, R. N. Bisset
Abstract:
We present a theoretical study of a mixture of antidipolar and nondipolar Bose-Einstein condensates confined to an infinite tube. The long-ranged inverted dipolar interactions result in a spin roton instability associated with an unmodulated-to-supersolid phase transition. We present a phase diagram including unmodulated miscible, supersolid, incoherent domain, and macroscopic domain phases. The low densities of the binary mixture do not require beyond-mean-field quantum fluctuation corrections for stabilization. Our survey ranges from the quasi-1D to the radial Thomas-Fermi (elongated 3D) regimes. We also present the dynamic formation of supersolids following a quench from the uniform miscible phase, which maintains phase coherence across the system.
Reference:
Spin rotons and supersolids in binary antidipolar condensates,
W. Kirkby, T. Bland, F. Ferlaino, R. N. Bisset,
arXiv:2301.08007, 2023.
Bibtex Entry:
@article{kirkby2023sra,
      title={Spin rotons and supersolids in binary antidipolar condensates}, 
      author={W. Kirkby and T. Bland and F. Ferlaino and R. N. Bisset},
      year={2023},
	  month = {Jan},
	abstract = {We present a theoretical study of a mixture of antidipolar and nondipolar Bose-Einstein condensates confined to an infinite tube. The long-ranged inverted dipolar interactions result in a spin roton instability associated with an unmodulated-to-supersolid phase transition. We present a phase diagram including unmodulated miscible, supersolid, incoherent domain, and macroscopic domain phases. The low densities of the binary mixture do not require beyond-mean-field quantum fluctuation corrections for stabilization. Our survey ranges from the quasi-1D to the radial Thomas-Fermi (elongated 3D) regimes. We also present the dynamic formation of supersolids following a quench from the uniform miscible phase, which maintains phase coherence across the system.},
      eprint={2301.08007},
      archivePrefix={arXiv},
      primaryClass={cond-mat.quant-gas},
	  journal={arXiv:2301.08007},
	  arXiv = {http://arxiv.org/abs/2301.08007},
	url = {http://arxiv.org/abs/2301.08007}
}