TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.16.1.023
TI  - Crossover from attractive to repulsive induced interactions and bound states of two distinguishable Bose polarons
PY  - 2024/01/23
UR  - https://scipost.org/SciPostPhys.16.1.023
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 16
IS  - 1
SP  - 023
A1  - Theel, Friethjof
AU  - Mistakidis, Simeon I.
AU  - Schmelcher, Peter
AB  - We study the impact of induced correlations and quasiparticle properties by immersing two distinguishable impurities in a harmonically trapped bosonic medium. It is found that when the impurities couple both either repulsively or attractively to their host, the latter mediates a two-body correlated behavior between them. In the reverse case, namely the impurities interact oppositely with the host, they feature anti-bunching. Monitoring the impurities relative distance and constructing an effective two-body model to be compared with the full many-body calculations, we are able to associate the induced (anti-) correlated behavior of the impurities with the presence of attractive (repulsive) induced interactions. Furthermore, we capture the formation of a bipolaron and a trimer state in the strongly attractive regime. The trimer refers to the correlated behavior of two impurities and a representative atom of the bosonic medium and it is characterized by an ellipsoidal shape of the three-body correlation function. Our results open the way for controlling polaron induced correlations and creating relevant bound states.
ER  -

@Article{10.21468/SciPostPhys.16.1.023,
	title={{Crossover from attractive to repulsive induced interactions and bound states of two distinguishable Bose polarons}},
	author={Friethjof Theel and Simeon I. Mistakidis and Peter Schmelcher},
	journal={SciPost Phys.},
	volume={16},
	pages={023},
	year={2024},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.16.1.023},
	url={https://scipost.org/10.21468/SciPostPhys.16.1.023},
}