Emergent Incompressibility in Polariton Condensates for Scalable XY Spin Simulation
Abstract
Driven-dissipative polariton networks offer a powerful analog platform for simulating continuous-spin Hamiltonians. However, their practical scalability is fundamentally limited by amplitude-phase coupling and metastable trapping in highly frustrated energy landscapes. Here, we present an \textit{in situ} dual-enhancement mechanism to address these bottlenecks without requiring external site-specific fine-tuning. First, a renormalization-group analysis based on density rescaling shows that higher-order nonlinear loss drives the condensates toward an incompressible regime, intrinsically suppressing amplitude fluctuations and enforcing phase-only dynamics. For macroscopic XY networks (up to 10,000 spins), this phase-amplitude decoupling yields a more than 50-fold reduction in energy, while simultaneously shrinking the standard deviation by a factor of six. More generally, it restores the extensive scaling of the optimized XY energy with system size. Second, to navigate the rugged, nonconvex energy landscape, we introduce weak Hermitian pulses. When implemented through a multistage protocol, these pulses enable repeated escapes from local minima and drive the system to deeper energy minima. Benchmarking shows an increasing advantage with system size, with the polariton simulator outperforming the classical Monte Carlo-SQP baseline in every sampled macroscopic realization. Our work provides a physical framework for scalable polariton analog computing.
Related
- 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
- Acoustic spin resonance in polariton condensates
BibTeX
@misc{yu2026emergent,
title = {{Emergent Incompressibility in Polariton Condensates for Scalable XY Spin Simulation}},
author = {Chengyong Yu and Youya Xu and Xuan Ye and Yan Zhou and Sanjib Ghosh},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.05782},
eprint = {2611.05782},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.05782},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Emergent Incompressibility in Polariton Condensates for Scalable XY Spin Simulation
AU - Chengyong Yu
AU - Youya Xu
AU - Xuan Ye
AU - Yan Zhou
AU - Sanjib Ghosh
PY - 2026
DA - 2026/11/04
PB - arXiv
DO - 10.48550/arxiv.2611.05782
UR - https://arxiv.org/abs/2611.05782
AB - Driven-dissipative polariton networks offer a powerful analog platform for simulating continuous-spin Hamiltonians. However, their practical scalability is fundamentally limited by amplitude-phase coupling and metastable trapping in highly frustrated energy landscapes. Here, we present an \textit{in situ} dual-enhancement mechanism to address these bottlenecks without requiring external site-specific fine-tuning. First, a renormalization-group analysis based on density rescaling shows that higher-order nonlinear loss drives the condensates toward an incompressible regime, intrinsically suppressing amplitude fluctuations and enforcing phase-only dynamics. For macroscopic XY networks (up to 10,000 spins), this phase-amplitude decoupling yields a more than 50-fold reduction in energy, while simultaneously shrinking the standard deviation by a factor of six. More generally, it restores the extensive scaling of the optimized XY energy with system size. Second, to navigate the rugged, nonconvex energy landscape, we introduce weak Hermitian pulses. When implemented through a multistage protocol, these pulses enable repeated escapes from local minima and drive the system to deeper energy minima. Benchmarking shows an increasing advantage with system size, with the polariton simulator outperforming the classical Monte Carlo-SQP baseline in every sampled macroscopic realization. Our work provides a physical framework for scalable polariton analog computing.
ER -