Fig. 1: Schematic of the possible experimental configuration of the polariton polarization rectifier.
a Sketch of the possible experimental configuration. The polariton condensate is excited by a resonant probe pulse (red split cone) at a distance rp from the centre of the harmonic trap with the wave vector kp and energy \(\hbar \omega _{\text{p}}\), allowing the polariton pulse to propagate along a circular trajectory (dashed circle). The subthreshold non-resonant cw pump (pale green) is used to increase the pulse lifetime. b Potential landscape across the structure in the reciprocal space. The yellow arrows in both panels indicate the orientation of the linear polarization plane of the propagating polariton pulse at different positions along the propagation trajectory. The polarization of the probe pulse can be chosen arbitrarily. In panels (a) and (b), the circular polarization (blue arrow) is shown as an example. The blue concentric circles in both panels are given as a guide for the eye to indicate the harmonic trap
