Spin order and phase transitions in chains of polariton condensates

Abstract

We demonstrate that multiply-coupled spinor polariton condensates can be optically tuned through a sequence of spin-ordered phases by changing the coupling strength between nearest neighbors. For closed 4-condensate chains these phases span from ferromagnetic (FM) to antiferromagnetic (AFM), separated by an unexpected crossover phase. This crossover phase is composed of alternating FM-AFM bonds. For larger 8 condensate chains, we show the critical role of spatial inhomogeneities and demonstrate a scheme to overcome them and prepare any desired spin state. Our observations thus demonstrate a fully controllable non-equilibrium spin lattice.

6 pages, 3 figures

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Cited by in corpus (10)

• Polariton condensation in $S$- and $P$-flatbands in a two-dimensional Lieb lattice
• Ultralong temporal coherence in optically trapped exciton-polariton condensates
• Optically induced topological spin-valley Hall effect for exciton polaritons
• Optically controlled polariton condensate molecules
• Dynamical blockade in a bosonic Josephson junction using optimal coupling
• Polariton spin jets through optical control
• Spin-orbit coupled polariton condensates in a radially-periodic potential: Multiring vortices and rotating solitons
• Self-organized PT-symmetry of exciton-polariton condensate in a double-well potential
• Giant increase of temporal coherence in optically trapped polariton condensate
• Nonequilibrium polariton condensation in biannular optically induced traps