English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Decoherence and Momentum Relaxation in Fermi-Polaron Rabi Dynamics: A Kinetic Equation Approach

MPS-Authors
/persons/resource/persons239008

Wasak,  Tomasz
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

/persons/resource/persons244578

Lang,  Johannes
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

/persons/resource/persons219996

Piazza,  Francesco
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)

2205.05941v2.pdf
(Preprint), 3MB

Supplementary Material (public)
There is no public supplementary material available
Citation

Wasak, T., Sighinolfi, M., Lang, J., Piazza, F., & Recati, A. (2024). Decoherence and Momentum Relaxation in Fermi-Polaron Rabi Dynamics: A Kinetic Equation Approach. Physical Review Letters, 132(18): 183001. doi:10.1103/PhysRevLett.132.183001.


Cite as: https://hdl.handle.net/21.11116/0000-000F-879D-8
Abstract
Despite the paradigmatic nature of the Fermi-polaron model, the theoretical description of its nonlinear dynamics poses challenges. Here, we apply a quantum kinetic theory of driven polarons to recent experiments with ultracold atoms, where Rabi oscillations between a Fermi-polaron state and a noninteracting level were reported. The resulting equations separate decoherence from momentum relaxation, with the corresponding rates showing a different dependence on microscopic scattering processes and quasiparticle properties. We describe both the polaron ground state and the excited repulsive-polaron state and we find a good quantitative agreement between our predictions and the available experimental data without any fitting parameter. Our approach not only takes into account collisional phenomena, but also it can be used to study the different roles played by decoherence and the collisional integral in the strongly interacting highly imbalanced mixture of Fermi gases.