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Signatures of Nontrivial Pairing in the Quantum Walk of Two-Component Bosons.
- Source :
-
Physical review letters [Phys Rev Lett] 2022 Jul 29; Vol. 129 (5), pp. 050601. - Publication Year :
- 2022
-
Abstract
- Nearest neighbor bosons possessing only on-site interactions do not form on-site bound pairs in their quantum walk due to fermionization. We obtain signatures of nontrivial on-site pairing in the quantum walk of strongly interacting two component bosons in a one dimensional lattice. By considering an initial state with particles from different components located at the nearest-neighbor sites in the central region of the lattice, we show that in the dynamical evolution of the system, competing intra- and intercomponent on-site repulsion leads to the formation of on-site intercomponent bound states. We find that when the total number of particles is three, an intercomponent pair is favored in the limit of equal intra- and intercomponent interaction strengths. However, when two bosons from each species are considered, intercomponent pairs and trimer are favored depending on the ratios of the intra- and intercomponent interactions. In both cases, we find that the quantum walks exhibit a reentrant behavior as a function of intercomponent interaction.
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 129
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 35960573
- Full Text :
- https://doi.org/10.1103/PhysRevLett.129.050601