Fig. 4: Control pulse dependence and system dynamics.
From: Realization of all-optical vortex switching in exciton-polariton condensates
a Time evolution of the total topological charge of the polariton condensate for different duration of the control pulse with wt = 10 ps and wt = 20 ps, respectively, for fixed intensity with a = 2. For wt = 10 ps successful vortex switching occurs whereas for wt = 20 ps the charge returns to its original +1 state. b Computed final switching state depending on pulse duration wt and pulse intensity a. Orange regions represent successful switching, leaving the system in the on state. For brown regions the system returns to the off state after the control pulse has passed. Parameter sets used in panel a are indicated as black dots in panel b.
