Polarized Rabi-coupled and spinor boson droplets

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YOĞURT T. A., KELEŞ A., Oktel M.

Physical Review A, vol.107, no.2, 2023 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 107 Issue: 2
  • Publication Date: 2023
  • Doi Number: 10.1103/physreva.107.023322
  • Journal Name: Physical Review A
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Compendex, INSPEC, zbMATH, DIALNET
  • Middle East Technical University Affiliated: Yes


Self-bound quantum droplets form when the mean-field tendency of the gas to collapse is stabilized by the effectively repulsive beyond-mean-field fluctuations. The beyond-mean-field effects depend on Rabi frequency ωR and quadratic Zeeman effect q for the Rabi-coupled Bose mixtures and the spinor gases, respectively. For a quantum droplet, the effects of varying ωR and q have recently been examined only for unpolarized Rabi-coupled Bose mixtures and unpolarized spinor gases. In this paper, we theoretically explore the stability of the droplet phase for polarized Rabi-coupled Bose mixtures and polarized spinor gases. We calculate the beyond-mean-field corrections for both gases with polarized order parameters and obtain the phase diagram of the droplets on the parameter space of Rabi frequency ωR and detuning δ for Rabi-coupled mixtures and quadratic Zeeman energy q and linear Zeeman energy p for spinor gases. Finally, we highlight the similarities and differences between the two systems and discuss their experimental feasibility.