Abstract

We Address The Interplay Of Few Lattice Trapped Bosons Interacting With An Impurity Atom In A Box Potential. For The Ground State, A Classification Is Performed Based On The Fidelity Allowing To Quantify The Susceptibility Of The Composite System To Structural Changes Due To The Intercomponent Coupling. We Analyze The Overall Response At The Many-Body Level And Contrast It To The Single-Particle Level. By Inspecting Different Entropy Measures We Capture The Degree Of Entanglement And Intraspecies Correlations For A Wide Range Of Intra- And Intercomponent Interactions And Lattice Depths. We Also Spatially Resolve The Imprint Of The Entanglement On The One- And Two-Body Density Distributions Showcasing That It Accelerates The Phase Separation Process Or Acts Against Spatial Localization For Repulsive And Attractive Intercomponent Interactions, Respectively. The Many-Body Effects On The Tunneling Dynamics Of The Individual Components, Resulting From Their Counterflow, Are Also Discussed. The Tunneling Period Of The Impurity Is Very Sensitive To The Value Of The Impurity-Medium Coupling Due To Its Effective Dressing By The Few-Body Medium. Our Work Provides Implications For Engineering Localized Structures In Correlated Impurity Settings Using Species Selective Optical Potentials.

Department(s)

Physics

Publication Status

Open Access

Comments

Universität Hamburg, Grant None

Keywords and Phrases

Entanglement; Few-body dynamics; Fidelity; Impurity; Mixtures; Multi-layer multi-configuration time-dependent Hartree method (ML-MCTDHB); Reduced densities; Von neumann entropy

International Standard Serial Number (ISSN)

1099-4300

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2024 The Authors, All rights reserved.

Creative Commons Licensing

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.

Publication Date

01 Mar 2021

Included in

Physics Commons

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