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Radiofrequency Spectroscopy Of One-Dimensional Trapped Bose Polarons: Crossover From The Adiabatic To The Diabatic Regime, Simeon I. Mistakidis, G. M. Koutentakis, F. Grusdt, H. R. Sadeghpour, P. Schmelcher
Radiofrequency Spectroscopy Of One-Dimensional Trapped Bose Polarons: Crossover From The Adiabatic To The Diabatic Regime, Simeon I. Mistakidis, G. M. Koutentakis, F. Grusdt, H. R. Sadeghpour, P. Schmelcher
Physics Faculty Research & Creative Works
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, …
Correlation Effects In The Quench-Induced Phase Separation Dynamics Of A Two Species Ultracold Quantum Gas, Simeon I. Mistakidis, Garyfallia C. Katsimiga, P. G. Kevrekidis, P. Schmelcher
Correlation Effects In The Quench-Induced Phase Separation Dynamics Of A Two Species Ultracold Quantum Gas, Simeon I. Mistakidis, Garyfallia C. Katsimiga, P. G. Kevrekidis, P. Schmelcher
Physics Faculty Research & Creative Works
We Explore The Quench Dynamics Of A Binary Bose-Einstein Condensate Crossing The Miscibility-Immiscibility Threshold And Vice Versa, Both Within And In Particular Beyond The Mean-Field Approximation. Increasing The Interspecies Repulsion Leads To The Filamentation Of The Density Of Each Species, Involving Shorter Wavenumbers And Longer Spatial Scales In The Many-Body (MB) Approach. These Filaments Appear To Be Strongly Correlated And Exhibit Domain-Wall Structures. Following The Reverse Quench Process Multiple Dark-Antidark Solitary Waves Are Spontaneously Generated And Subsequently Found To Decay In The MB Scenario. We Simulate Single-Shot Images To Connect Our Findings To Possible Experimental Realizations. Finally, The Growth Rate …