dc.identifier.uri |
http://dx.doi.org/10.15488/14707 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/14825 |
|
dc.contributor.author |
Astrakharchik, Grigory E.
|
|
dc.contributor.author |
Ardila, Luis A. Peña
|
|
dc.contributor.author |
Jachymski, Krzysztof
|
|
dc.contributor.author |
Negretti, Antonio
|
|
dc.date.accessioned |
2023-09-06T05:16:24Z |
|
dc.date.available |
2023-09-06T05:16:24Z |
|
dc.date.issued |
2023 |
|
dc.identifier.citation |
Astrakharchik, G.E.; Ardila, L.A.P; Jachymski, K.; Negretti, A.: Many-body bound states and induced interactions of charged impurities in a bosonic bath. In: Nature Communications 14 (2023), 1647. DOI: https://doi.org/10.1038/s41467-023-37153-0 |
|
dc.description.abstract |
Induced interactions and bound states of charge carriers immersed in a quantum medium are crucial for the investigation of quantum transport. Ultracold atom-ion systems can provide a convenient platform for studying this problem. Here, we investigate the static properties of one and two ionic impurities in a bosonic bath using quantum Monte Carlo methods. We identify three bipolaronic regimes depending on the strength of the atom-ion potential and the number of its two-body bound states: a perturbative regime resembling the situation of a pair of neutral impurities, a non-perturbative regime that loses the quasi-particle character of the former, and a many-body bound state regime that can arise only in the presence of a bound state in the two-body potential. We further reveal strong bath-induced interactions between the two ionic polarons. Our findings show that numerical simulations are indispensable for describing highly correlated impurity models. |
eng |
dc.language.iso |
eng |
|
dc.publisher |
[London] : Nature Publishing Group UK |
|
dc.relation.ispartofseries |
Nature Communications 14 (2023) |
|
dc.rights |
CC BY 4.0 Unported |
|
dc.rights.uri |
https://creativecommons.org/licenses/by/4.0/ |
|
dc.subject |
Monte Carlo analysis |
eng |
dc.subject |
quantum mechanics |
eng |
dc.subject |
simulation |
eng |
dc.subject |
computer simulation |
eng |
dc.subject |
Monte Carlo method |
eng |
dc.subject.ddc |
500 | Naturwissenschaften
|
ger |
dc.title |
Many-body bound states and induced interactions of charged impurities in a bosonic bath |
eng |
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.essn |
2041-1723 |
|
dc.relation.doi |
https://doi.org/10.1038/s41467-023-37153-0 |
|
dc.bibliographicCitation.volume |
14 |
|
dc.bibliographicCitation.firstPage |
1647 |
|
dc.description.version |
publishedVersion |
|
tib.accessRights |
frei zug�nglich |
|