Steady reservoir-mediated self-trapping of polariton condensates

@misc{kozhevin2026steady,
  title = {{Steady reservoir-mediated self-trapping of polariton condensates}},
  author = {Pavel N. Kozhevin and Oleg I. Utesov and Igor S. Aranson and Sergey V. Koniakhin and Anton V. Nalitov},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.07962},
  eprint = {2609.07962},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.07962},
}

TY  - UNPB
TI  - Steady reservoir-mediated self-trapping of polariton condensates
AU  - Pavel N. Kozhevin
AU  - Oleg I. Utesov
AU  - Igor S. Aranson
AU  - Sergey V. Koniakhin
AU  - Anton V. Nalitov
PY  - 2026
DA  - 2026/09/07
PB  - arXiv
DO  - 10.48550/arxiv.2609.07962
UR  - https://arxiv.org/abs/2609.07962
AB  - Nonequilibrium bosonic condensates of exciton-polaritons generated by tightly focused incoherent optical beams are typically expected to form a stationary ballistically expanding state with the notable exception of experimentally observed compact self-trapped states [Phys. Rev. Lett. 123, 047401 (2019)]. We show that the back-action of the condensate on the optically pumped excitonic reservoir via bosonic stimulated scattering can cause local reservoir depletion, producing a steady condensate confined in a self-induced potential trap. Notably, this self-trapped state is formed by persistent converging rather than radially expanding polariton currents and exists even below the conventionally defined condensation threshold. This state remains steady over nanosecond-scale times and is eventually ejected from the self-induced trap due to a bullet-type instability, enabling spiking neuromorphic dynamics in networks of polariton condensates.
ER  -