Bose-Einstein condensation of polaritons at room temperature in a GaAs/AlGaAs structure
Quantum Gases
2025-11-05 v1
Abstract
We report the canonical properties of Bose-Einstein condensation of polaritons, seen previously in many low-temperature experiments, at room temperature in a GaAs/AlGaAs structure. These effects include a nonlinear energy shift of the polaritons, showing that they are not non-interacting photons, and dramatic line narrowing due to coherence, giving coherent emission with spectral width of 0.24 meV at room temperature with no external stabilization. This opens up the possibility of room temperature nonlinear optical devices based on polariton condensation.
Keywords
Cite
@article{arxiv.2406.13689,
title = {Bose-Einstein condensation of polaritons at room temperature in a GaAs/AlGaAs structure},
author = {Hassan Alnatah and Qi Yao and Qiaochu Wan and Jonathan Beaumariage and Ken West and Kirk Baldwin and Loren N. Pfeiffer and David W. Snoke},
journal= {arXiv preprint arXiv:2406.13689},
year = {2025}
}