Time-periodic driving of a bath-coupled open quantum gas of light
Quantum Gases
2025-07-22 v2 Quantum Physics
Abstract
We study the frequency-resolved density response of a photon Bose-Einstein condensate coupled to a bath of dye molecules by time-periodic driving. By monitoring the photon number dynamics for different drive frequencies, we obtain the spectral response of the condensate in a phase-sensitive way. We find that as the photon number increases, the response of the coupled condensate-bath system transitions from overdamped to resonant behavior, indicating a transition from closed to open system dynamics. Our spectroscopy method paves the way for studies of collective excitations in complex driven-dissipative systems.
Cite
@article{arxiv.2502.14986,
title = {Time-periodic driving of a bath-coupled open quantum gas of light},
author = {Andris Erglis and Alexander Sazhin and Frank Vewinger and Martin Weitz and Stefan Yoshi Buhmann and Julian Schmitt},
journal= {arXiv preprint arXiv:2502.14986},
year = {2025}
}
Comments
11 pages, 5 figures