Fig. 5
From: Pancharatnam–Berry phase in condensate of indirect excitons

Simulation of IX polarization state. a Simulated S1 Stokes’ vector component corresponding to linear polarization of IX emission. Initial conditions at r = rp correspond to linear polarization. Oscillatory S1 behaviour due to coherent spin precession occurs for r > rp. rp = 4 μm. b Diagonal cross-section of a. c IX polarization state on Poincaré sphere for one fast polarization oscillation cycle in a