Abstract
We Explore Repulsive Fermi Polarons In One-Dimensional Harmonically Trapped Few-Body Mixtures Of Ultracold Atoms Using As A Case Example A 6Li-40K Mixture. A Characterization Of These Quasiparticle-Like States, Whose Appearance Is Signaled In The Impurity's Radiofrequency Spectrum, Is Achieved By Extracting Their Lifetime And Residua. Increasing The Number Of 40K Impurities Leads To The Occurrence Of Both Single And Multiple Polarons That Are Entangled With Their Environment. An Interaction-Dependent Broadening Of The Spectral Lines Is Observed Suggesting The Presence Of Induced Interactions. We Propose The Relative Distance Between The Impurities As An Adequate Measure To Detect Induced Interactions Independently Of The Specifics Of The Atomic Mixture, A Result That We Showcase By Considering Also A 6Li-173Yb System. This Distance Is Further Shown To Be Indicative Of The Generation Of Entanglement Independently Of The Size Of The Bath (6Li) And The Atomic Species Of The Impurity. The Generation Of Entanglement And The Importance Of Induced Interactions Are Revealed With An Emphasis On The Regime Of Intermediate Interaction Strengths.
Recommended Citation
S. I. Mistakidis et al., "Repulsive Fermi Polarons And Their Induced Interactions In Binary Mixtures Of Ultracold Atoms," New Journal of Physics, vol. 21, no. 4, article no. 043032, IOP Publishing, Apr 2019.
The definitive version is available at https://doi.org/10.1088/1367-2630/ab1045
Department(s)
Physics
Publication Status
Open Access
Keywords and Phrases
correlations; Fermi polarons; induced interactions; radiofrequency spectroscopy
International Standard Serial Number (ISSN)
1367-2630
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2024 The Authors, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution 4.0 License.
Publication Date
15 Apr 2019
