Weak and strong coupling polarons in binary Bose-Einstein condensates

• URL: http://arxiv.org/abs/2401.11808v2
• Date: Sat, 27 Jul 2024 16:33:16 GMT
• Title: Weak and strong coupling polarons in binary Bose-Einstein condensates
• Authors: Ning Liu,
• Abstract summary: The Bose polaron is a quasiparticle that arises from the interaction between impurities and Bogoliubov excitation in Bose-Einstein condensates. We investigate the effect of phase separation on weakly coupled and strongly coupled Bose polarons.
• Score: 5.356826859571684
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The Bose polaron is a quasiparticle that arises from the interaction between impurities and Bogoliubov excitation in Bose-Einstein condensates, analogous to the polaron formed by electrons and phonons in solid-state physics. In this paper, we investigate the effect of phase separation on weakly coupled and strongly coupled Bose polarons. Our findings reveal that phase separation induces a remarkable alteration in the properties of weakly coupled Bose polarons. However, in the case of strong coupling, phase separation cannot destroy the highly self-trapping state of Bose polarons.

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