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  • Letter
  • Open Access

Quantum soliton-trains of strongly correlated impurities in Bose-Einstein condensates

Hoshu Hiyane*, Thomas Busch, and Thomás Fogarty

  • *Contact author: hoshu.hiyane@oist.jp
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Phys. Rev. Research 6, L032040 – Published 23 August, 2024

DOI: https://doi.org/10.1103/PhysRevResearch.6.L032040

Abstract

Strongly correlated impurities immersed in a Bose-Einstein condensate (BEC) can form a periodic structure of tightly localized single atoms due to competing inter and intraspecies interactions, leading to a self-organized pinned state. In this work, we show numerically that the impurities in the self-pinned state form a soliton-train, as a consequence of a BEC-mediated attractive self-interaction and ordering due to the exclusion principle. The dynamics of the impurities possess the characteristics of bright matter-wave soliton trains as often seen in classical fields; however, in the few impurities cases, the detailed nature of collisions is determined by their quantum statistics.

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Phys. Rev. Research 6, L032040– Published 23 August, 2024
  • Received 3 March 2024
  • Revised 30 May 2024
  • Accepted 22 July 2024
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