3 papers
cond-mat.quant-gas2025
Time-periodic driving of a bath-coupled open quantum gas of light
Andris Erglis, Alexander Sazhin, Frank Vewinger +3
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 d…
cond-mat.quant-gas2024
Observation of Nonlinear Response and Onsager Regression in a Photon Bose-Einstein Condensate
Alexander Sazhin, Vladimir N. Gladilin, Andris Erglis +5
The quantum regression theorem states that the correlations of a system at two different times are governed by the same equations of motion as the temporal response of the average…
cond-mat.quant-gas2024
Photonic Bose-Einstein condensation in the continuum limit
Andris Erglis, Milan RadonjiÄ, Stefan Yoshi Buhmann
We investigate the properties of the photon Bose-Einstein condensate in the limit of small mode spacing. Alongside the well-known threshold of the phase transition at large mode sp…