Yordanov, V. R. and Isaule, F. (2023) Mobile impurities interacting with a few one-dimensional lattice bosons. Journal of Physics B: Atomic, Molecular and Optical Physics, 56(4), 045301. (doi: 10.1088/1361-6455/acb51b)
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Abstract
We report a comprehensive study of the ground-state properties of one and two bosonic impurities immersed in small one-dimensional optical lattices loaded with a few interacting bosons. We model the system with a two-component Bose–Hubbard model and solve the problem numerically by means of the exact diagonalization method. We report binding energies of one and two impurities across the superfluid (SF) to Mott-insulator transition and confirm the formation of two-body bound states of impurities induced by repulsive interactions. In particular, we found that an insulator bath induces tightly bound di-impurity dimers, whereas a SF bath induces shallower bound states.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Isaule Rodriguez, Dr Felipe |
| Authors: | Yordanov, V. R., and Isaule, F. |
| Subjects: | Q Science > QC Physics |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Research Group: | Quantum Theory |
| Journal Name: | Journal of Physics B: Atomic, Molecular and Optical Physics |
| Journal Abbr.: | J. Phys. B: At. Mol. Opt. Phys. |
| Publisher: | IOP Publishing |
| ISSN: | 0953-4075 |
| ISSN (Online): | 1361-6455 |
| Published Online: | 03 February 2023 |
| Copyright Holders: | Copyright © 2023 The Authors |
| First Published: | First published in Journal of Physics B: Atomic, Molecular and Optical Physics 56(4): 045301 |
| Publisher Policy: | Reproduced under a Creative Commons License |
| Related URLs: | |
| Data DOI: | 10.5281/zenodo.6871997 |
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