Subcritical bifurcation and on-off bistability in ballistic polariton condensates
Abstract
Dynamics of exciton-polariton condensates under continuous-wave incoherent Gaussian optical pumping is considered. It is shown that the conventional supercritical Stuart-Landau picture is invalid in a certain domain of the parameter space. For strong polariton repulsion from the reservoir and relatively small pump spots, the dynamics is adequately described by the quintic Stuart-Landau equation. The corresponding subcritical pitchfork bifurcation leads to condensate formation, accompanied by bistability between the trivial and nontrivial states over a finite pump-power range and a one-bit memory. Further increase of the repulsion parameter or decrease of the spot size breaks down the perturbative approach and leads to a peculiar self-trapping regime with complex dynamics. Experimental evidence of the emergence of the proposed behavior is provided. Our findings can be used to design polaritonic setups that exploit the predicted memory effect.
Related
- Noise-enhanced ballistic expansion of polariton wave-packets in a multimode cavity
- Exciton-polariton condensates in epsilon-near-zero cavities
- Hidden chirality and half-vortex formation in exciton-polariton condensates
- Topological charge switching in trapped polariton condensates
- Steady reservoir-mediated self-trapping of polariton condensates
BibTeX
@misc{utesov2026subcritical,
title = {{Subcritical bifurcation and on-off bistability in ballistic polariton condensates}},
author = {Oleg I. Utesov and Soohong Choi and Pavel Kozhevin and Min Park and Daegwang Choi and Hyungdo Lee and Alexey N. Osipov and Alexey V. Yulin and Se Kwon Kim and Yong-Hoon Cho and Igor S. Aranson and Hyoungsoon Choi and Anton V. Nalitov and Sergei V. Koniakhin},
howpublished = {arXiv},
year = {2026},
month = aug,
doi = {10.48550/arxiv.2608.27823},
eprint = {2608.27823},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2608.27823},
}
RIS
TY - UNPB
TI - Subcritical bifurcation and on-off bistability in ballistic polariton condensates
AU - Oleg I. Utesov
AU - Soohong Choi
AU - Pavel Kozhevin
AU - Min Park
AU - Daegwang Choi
AU - Hyungdo Lee
AU - Alexey N. Osipov
AU - Alexey V. Yulin
AU - Se Kwon Kim
AU - Yong-Hoon Cho
AU - Igor S. Aranson
AU - Hyoungsoon Choi
AU - Anton V. Nalitov
AU - Sergei V. Koniakhin
PY - 2026
DA - 2026/08/28
PB - arXiv
DO - 10.48550/arxiv.2608.27823
UR - https://arxiv.org/abs/2608.27823
AB - Dynamics of exciton-polariton condensates under continuous-wave incoherent Gaussian optical pumping is considered. It is shown that the conventional supercritical Stuart-Landau picture is invalid in a certain domain of the parameter space. For strong polariton repulsion from the reservoir and relatively small pump spots, the dynamics is adequately described by the quintic Stuart-Landau equation. The corresponding subcritical pitchfork bifurcation leads to condensate formation, accompanied by bistability between the trivial and nontrivial states over a finite pump-power range and a one-bit memory. Further increase of the repulsion parameter or decrease of the spot size breaks down the perturbative approach and leads to a peculiar self-trapping regime with complex dynamics. Experimental evidence of the emergence of the proposed behavior is provided. Our findings can be used to design polaritonic setups that exploit the predicted memory effect.
ER -