Effective Approach To Impurity Dynamics In One-Dimensional Trapped Bose Gases

Author

Simeon I. Mistakidis, Missouri University of Science and TechnologyFollow
A. G. Volosniev
N. T. Zinner
P. Schmelcher

Abstract

We Investigate A Temporal Evolution Of An Impurity Atom In A One-Dimensional Trapped Bose Gas Following A Sudden Change Of The Boson-Impurity Interaction Strength. Our Focus Is On The Effects Of Inhomogeneity Due To The Harmonic Confinement. These Effects Can Be Described By An Effective One-Body Model Where Both The Mass And The Spring Constant Are Renormalized. This Is In Contrast To The Classic Renormalization, Which Addresses Only The Mass. We Propose An Effective Single-Particle Hamiltonian And Apply The Multilayer Multiconfiguration Time-Dependent Hartree Method For Bosons To Explore Its Validity. Numerical Results Suggest That The Effective Mass Is Smaller Than The Impurity Mass, Which Means That It Cannot Straightforwardly Be Extracted From Translationally Invariant Models.

Recommended Citation

S. I. Mistakidis et al., "Effective Approach To Impurity Dynamics In One-Dimensional Trapped Bose Gases," Physical Review A, vol. 100, no. 1, article no. 013619, American Physical Society, Jul 2019.

The definitive version is available at https://doi.org/10.1103/PhysRevA.100.013619

Department(s)

Physics

Comments

Alexander von Humboldt-Stiftung, Grant 413495248

International Standard Serial Number (ISSN)

2469-9934; 2469-9926

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2024 American Physical Society, All rights reserved.

Publication Date

16 Jul 2019