Abstract
We study a mean-field model for the dynamics of an interacting Bose-Einstein condensate in two-dimensional pseudorelativistic materials. This model is relatively simple but contains long-lived solutions called oscillons which are absent in simple nonrelativistic condensates. We report on a variety of scenarios including interactions between pairs of oscillons and oscillons propagating across an inhomogeneous material boundary. Hitherto, relativistic oscillons have been studied only in high-energy physics and cosmology, and their relevance has not been highlighted so far in condensed-matter physics.
Original language | English |
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Article number | 033321 |
Journal | Physical Review A |
Volume | 102 |
Issue number | 3 |
DOIs | |
Publication status | Published - 14 Sept 2020 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics