Abstract

A Scheme Is Proposed To Dynamically Excite Distinct Eigenstate Superpositions In Three-Body Bose-Fermi Mixtures Confined In A Two-Dimensional Harmonic Trap. The System Is Initialized In A Noninteracting State With A Variable Spatial Extent, And The Scattering Lengths Are Subsequently Quenched Spanning The Regime From Weak To Strong Interactions. For Spatial Widths Smaller Than The Three-Body Harmonic Oscillator Length, A Superposition Of Trimers And Atom-Dimers Is Dynamically Attained, Otherwise Trap States Are Predominantly Populated, As Inferred From The Frequency Spectrum Of The Fidelity. Accordingly, The Tan Contacts Evince The Buildup Of Short-Range Two- And Three-Body Correlations In The Course Of The Evolution. A Larger Spatial Extent Of The Initial State Leads To A Reduction Of Few-Body Correlations, Endowed, However, With Characteristic Peaks At The Positions Of The Avoided Crossings In The Energy Spectra, Thereby Signaling The Participation Of Atom-Dimers. Our Results Expose Ways To Dynamically Excite Selectively Trimers, Atom-Dimers, And Trapped Few-Body States Characterized By Substantial Correlations, And They Are Likely To Be Accessible Within Current Experiments.

Department(s)

Physics

Comments

National Science Foundation, Grant EXC 1074

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

01 Oct 2022

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Physics Commons

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