Anderson orthogonality scaling in the Rabi-driven heavy Fermi polaron

@misc{rautenberg2026anderson,
  title = {{Anderson orthogonality scaling in the Rabi-driven heavy Fermi polaron}},
  author = {Michael Rautenberg and Tobias Krom and Eugen Dizer and Olivier Bleu and Eleonora Lippi and Tilman Enss and Manfred Salmhofer and Lauriane Chomaz and Matthias Weidemüller},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.09129},
  eprint = {2609.09129},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.09129},
}

TY  - UNPB
TI  - Anderson orthogonality scaling in the Rabi-driven heavy Fermi polaron
AU  - Michael Rautenberg
AU  - Tobias Krom
AU  - Eugen Dizer
AU  - Olivier Bleu
AU  - Eleonora Lippi
AU  - Tilman Enss
AU  - Manfred Salmhofer
AU  - Lauriane Chomaz
AU  - Matthias Weidemüller
PY  - 2026
DA  - 2026/09/08
PB  - arXiv
DO  - 10.48550/arxiv.2609.09129
UR  - https://arxiv.org/abs/2609.09129
AB  - The Anderson orthogonality catastrophe (AOC) is a paradigmatic many-body phenomenon in which a local perturbation induces a macroscopic response of a Fermi sea. We probe signatures of the AOC by coherently driving heavy Fermi polarons in an ultracold ^6Li-^133Cs mixture. We observe a power-law dependence of the measured Rabi frequency on the drive strength, with exponents consistent with AOC predictions. Finite-temperature simulations quantitatively reproduce the observed scaling, indicating that AOC signatures persist beyond the idealized zero-temperature, infinite-mass limit. The damping of the Rabi oscillations provides access to polaron dephasing and reveals a nonmonotonic drive dependence, qualitatively consistent with current theories. Our results establish coherently driven impurities as a versatile probe of quantum many-body dynamics through local coherent control.
ER  -