Nonergodic dynamics for an impurity interacting with bosons in tilted lattice

• URL: http://arxiv.org/abs/2306.06705v2
• Date: Wed, 11 Oct 2023 09:59:02 GMT
• Title: Nonergodic dynamics for an impurity interacting with bosons in tilted lattice
• Authors: Pedro R. Nic\'acio Falc\~ao and Jakub Zakrzewski
• Abstract summary: The fate of the single particle immersed in and interacting with a bath of other particles localized in a tilted lattice is investigated. For tilt values comparable to the tunneling rate a slow-down of the dynamics is observed without, however, a clear localization of the impurity.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The fate of the single particle immersed in and interacting with a bath of other particles localized in a tilted lattice is investigated. For tilt values comparable to the tunneling rate a slow-down of the dynamics is observed without, however, a clear localization of the impurity. For large tilt and strong interactions the motion of the impurity resembles that in the Kronig-Penney potential. The dynamics depends on the initial distribution of tilted bosons. It shows delocalized dynamics for a regular, density wave like distribution and a localization if tilted bosons are randomly distributed.

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