Work

Hidden chirality and half-vortex formation in polariton condensates

Year: 2026

Type: article

Abstract: 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 non-reciprocal coupling between counter-rotating modes. Full driven-dissipative Gross-Pitaevskii simulations show that this hidden chirality enables all-optical formation of spin-selective half-vortices.

Source: Physical review. B./Physical review. B

DOI: 10.1103/tdhq-gtzx

Authors: A. N. Osipov, I. Y. Chestnov, P. G. Lagoudakis, A. V. Yulin

Institutions: ITMO University, Skolkovo Institute of Science and Technology

Language: English

Topic: Strong Light-Matter Interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Russian Science Foundation

Award: G7454440957