Repulsive Fermi and Bose polarons in quantum gases
Polaron quasiparticles are formed when a mobile impurity is coupled to the elementary
excitations of a many-particle background. In the field of ultracold atoms, the study of the …
excitations of a many-particle background. In the field of ultracold atoms, the study of the …
Few-body Bose gases in low dimensions—A laboratory for quantum dynamics
Cold atomic gases have become a paradigmatic system for exploring fundamental physics,
which at the same time allows for applications in quantum technologies. The accelerating …
which at the same time allows for applications in quantum technologies. The accelerating …
Non-equilibrium quantum dynamics and formation of the Bose polaron
Advancing our understanding of non-equilibrium phenomena in quantum many-body
systems remains one of the greatest challenges in physics. Here we report on the …
systems remains one of the greatest challenges in physics. Here we report on the …
Orthogonality catastrophe as a consequence of the quantum speed limit
A remarkable feature of quantum many-body systems is the orthogonality catastrophe that
describes their extensively growing sensitivity to local perturbations and plays an important …
describes their extensively growing sensitivity to local perturbations and plays an important …
[HTML][HTML] Modulational instability and droplet formation in Bose-Bose mixtures with Lee-Huang-Yang correction and polaron-like impurity
This letter studies the excitation of nonlinear patterns on the one-dimensional (1D) quantum
droplet in the presence of polaron-like impurity under modulational instability (MI) activation …
droplet in the presence of polaron-like impurity under modulational instability (MI) activation …
Formation and quench of homonuclear and heteronuclear quantum droplets in one dimension
We study the impact of beyond Lee-Huang-Yang (LHY) physics, especially due to
intercomponent correlations, in the ground state and the quench dynamics of one …
intercomponent correlations, in the ground state and the quench dynamics of one …
Theory of a resonantly interacting impurity in a Bose-Einstein condensate
M Drescher, M Salmhofer, T Enss - Physical Review Research, 2020 - APS
We investigate a Bose-Einstein condensate in strong interaction with a single impurity
particle. While this situation has received considerable interest in recent years, the regime of …
particle. While this situation has received considerable interest in recent years, the regime of …
Universal aspects of a strongly interacting impurity in a dilute Bose condensate
P Massignan, N Yegovtsev, V Gurarie - Physical review letters, 2021 - APS
We study the properties of an impurity immersed in a weakly interacting Bose gas, ie, of a
Bose polaron. In the perturbatively tractable limit of weak impurity-boson interactions many …
Bose polaron. In the perturbatively tractable limit of weak impurity-boson interactions many …
Mobile impurity in a Bose-Einstein condensate and the orthogonality catastrophe
We analyze the properties of an impurity in a dilute Bose-Einstein condensate (BEC). The
quasiparticle residue of a static impurity in an ideal BEC is known to vanish exponentially …
quasiparticle residue of a static impurity in an ideal BEC is known to vanish exponentially …
Real-space dynamics of attractive and repulsive polarons in Bose-Einstein condensates
M Drescher, M Salmhofer, T Enss - Physical Review A, 2019 - APS
We investigate the formation of a Bose polaron when a single impurity in a Bose-Einstein
condensate is quenched from a noninteracting to an attractively interacting state in the …
condensate is quenched from a noninteracting to an attractively interacting state in the …