Abstract
We Investigate The Crossover Of The Impurity-Induced Dynamics, In Trapped One-Dimensional Bose Polarons Subject To Radio Frequency (RF) Pulses Of Varying Intensity, From An Adiabatic To A Diabatic Regime. Utilizing Adiabatic Pulses For Either Weak Repulsive Or Attractive Impurity-Medium Interactions, A Multitude Of Polaronic Excitations Or Mode-Couplings Of The Impurity-Bath Interaction With The Collective Breathing Motion Of The Bosonic Medium Are Spectrally Resolved. We Find That For Strongly Repulsive Impurity-Bath Interactions, A Temporal Orthogonality Catastrophe Manifests In Resonances In The Excitation Spectra Where Impurity Coherence Vanishes. When Two Impurities Are Introduced, Impurity-Impurity Correlations, For Either Attractive Or Strong Repulsive Couplings, Induce A Spectral Shift Of The Resonances With Respect To The Single Impurity. For A Heavy Impurity, The Polaronic Peak Is Accompanied By A Series Of Equidistant Side-Band Resonances, Related To Interference Of The Impurity Spin Dynamics And The Sound Waves Of The Bath. In All Cases, We Enter The Diabatic Transfer Regime For An Increasing Bare Rabi Frequency Of The RF Field With A Lorentzian Spectral Shape Featuring A Single Polaronic Resonance. The Findings In This Work On The Effects Of External Trap, RF Pulse And Impurity-Impurity Interaction Should Have Implications For The New Generations Of Cold-Atom Experiments.
Recommended Citation
S. I. Mistakidis et al., "Radiofrequency Spectroscopy Of One-Dimensional Trapped Bose Polarons: Crossover From The Adiabatic To The Diabatic Regime," New Journal of Physics, vol. 23, no. 4, article no. 043051, IOP Publishing, Apr 2021.
The definitive version is available at https://doi.org/10.1088/1367-2630/abe9d5
Department(s)
Physics
Publication Status
Open Access
Keywords and Phrases
Bose polarons; correlations effects; radiofrequency spectroscopy; spinor impurities
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
01 Apr 2021
Comments
Deutsche Forschungsgemeinschaft, Grant EXC-2111–390814868 SFB 925