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cond-mat.quant-gas2026
The moving Fermi polaron
Johanna Hennebichler, Ruben Erlenstedt, Erich Dobler +5
The Fermi polaron, formed by an impurity interacting with a surrounding Fermi sea, exemplifies the canonical quasiparticle concept as a cornerstone in our description of quantum ma…
cond-mat.quant-gas2023
Mediated interactions between Fermi polarons and the role of impurity quantum statistics
Cosetta Baroni, Bo Huang, Isabella Fritsche +7
The notion of quasi-particles is essential for understanding the behaviour of complex many-body systems. A prototypical example of a quasi-particle, a polaron, is an impurity stron…
cond-mat.quant-gas2021
Stability and breakdown of Fermi polarons in a strongly interacting Fermi-Bose mixture
Isabella Fritsche, Cosetta Baroni, Erich Dobler +5
We investigate the properties of a strongly interacting imbalanced mixture of bosonic K impurities immersed in a Fermi sea of ultracold Li atoms. This enables us to expl…