Kardar-Parisi-Zhang universality in discrete two-dimensional driven-dissipative exciton polariton condensates
Kardar-Parisi-Zhang universality in discrete two-dimensional driven-dissipative exciton polariton condensates
The statistics of the fluctuations of quantum many-body systems are highly revealing of their nature. In driven-dissipative systems displaying macroscopic quantum coherence, as exciton polariton condensates under incoherent pumping, the phase dynamics can be mapped to the stochastic Kardar-Parisi-Zhang (KPZ) equation. However, it was argued theoretically that in two dimensions …