Journal article · July 2025
Time-Periodic Driving of a Bath-Coupled Open Quantum Gas of Light
Physical Review Letters 135, 033603 (2025) · doi:10.1103/922g-1fng
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{erglis2025timeperiodicdrivingbathcoupledopen,
title = {Time-Periodic Driving of a Bath-Coupled Open Quantum Gas of Light},
volume = {135},
ISSN = {1079-7114},
url = {http://dx.doi.org/10.1103/922g-1fng},
DOI = {10.1103/922g-1fng},
number = {3},
journal = {Physical Review Letters},
publisher = {American Physical Society (APS)},
author = {Erglis, Andris and Sazhin, Alexander and Vewinger, Frank and Weitz, Martin and Buhmann, Stefan Yoshi and Schmitt, Julian},
year = {2025},
month = {July},
pages = {033603},
eprint = {2502.14986},
archivePrefix = {arXiv},
primaryClass = {cond-mat.quant-gas}
}