Extended XY Model for Spinor Polariton Simulators.

Authors

A Kudlis, D Novokreschenov, I A Shelykh

Published in

Physical review letters. Volume 135. Issue 11. Pages 116903. Sep 12, 2025.

Abstract

The classic lattice XY model is one of the universal models of statistical mechanics appearing in a broad variety of optical and condensed matter systems. One of its possible realizations is a system of tunnel-coupled spinor polariton condensates, where phases of individual condensates play a role of the two- dimensional spins. We show that the account of the polarization degree of freedom of cavity polaritons adds a new twist to the problem, modifying in particular the structure of the ground state. We formulate the corresponding classical spin Hamiltonian, which couples phase and polarization dynamics, and consider several particular geometries, demonstrating the principal differences between the scalar and spinor cases. Possible analog of spin Meissner effect for coupled condensates is discussed.

PMID:
41004739
Bibliographic data and abstract were imported from PubMed on 27 Sep 2025.

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