We show that a radially symmetric, nonresonantly pumped spinor exciton-polariton condensate can acquire chirality without a rotating drive, chiral geometry, or pump orbital angular momentum. Spin relaxation in a two-reservoir system shifts the reservoir-induced blueshift relative to the gain profile, creating an effective non-Hermitian chiral potential. A reduced angular-mode theory reveals tunable exceptional points and nonreciprocal coupling between counterrotating modes. Full driven-dissipative Gross-Pitaevskii simulations show that this hidden chirality enables all-optical formation of spin-selective half-vortices.

Close

PrevNext

View figure in article

• Chirality
• Exciton polariton
• Optical vortices
• Polarization vortices
• Vortices in superfluids
• Bose-Einstein condensates
• Exceptional points
• Non-Hermitian systems
• Optical microcavities
• Polariton condensate
• Spinor Bose-Einstein condensates