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Dissipative Correlated Dynamics Of A Moving Impurity Immersed In A Bose-Einstein Condensate, Simeon I. Mistakidis, F. Grusdt, G. M. Koutentakis, P. Schmelcher
Dissipative Correlated Dynamics Of A Moving Impurity Immersed In A Bose-Einstein Condensate, Simeon I. Mistakidis, F. Grusdt, G. M. Koutentakis, P. Schmelcher
Physics Faculty Research & Creative Works
We Unravel The Nonequilibrium Correlated Quantum Quench Dynamics Of An Impurity Traveling Through A Harmonically Confined Bose-Einstein Condensate In One-Dimension. For Weak Repulsive Interspecies Interactions The Impurity Oscillates Within The Bosonic Gas. At Strong Repulsions And Depending On Its Prequench Position The Impurity Moves Towards An Edge Of The Bosonic Medium And Subsequently Equilibrates. This Equilibration Being Present Independently Of The Initial Velocity, The Position And The Mass Of The Impurity Is Inherently Related To The Generation Of Entanglement In The Many-Body System. Focusing On Attractive Interactions The Impurity Performs A Damped Oscillatory Motion Within The Bosonic Bath, A Behavior …
Repulsive Fermi Polarons And Their Induced Interactions In Binary Mixtures Of Ultracold Atoms, Simeon I. Mistakidis, Garyfallia C. Katsimiga, G. M. Koutentakis, P. Schmelcher
Repulsive Fermi Polarons And Their Induced Interactions In Binary Mixtures Of Ultracold Atoms, Simeon I. Mistakidis, Garyfallia C. Katsimiga, G. M. Koutentakis, P. Schmelcher
Physics Faculty Research & Creative Works
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 …