{ "id": "1709.07921", "version": "v1", "published": "2017-08-09T08:26:28.000Z", "updated": "2017-08-09T08:26:28.000Z", "title": "Spin order and phase transitions in chains of polariton condensates", "authors": [ "H. Ohadi", "A. J. Ramsay", "H. Sigurdsson", "Y. del Valle-Inclan Redondo", "S. I. Tsintzos", "Z. Hatzopoulos", "T. C. H. Liew", "I. A. Shelykh", "Y. G. Rubo", "P. G. Savvidis", "J. J. Baumberg" ], "comment": "6 pages, 3 figures", "journal": "PRL 119, 067401 (2017)", "doi": "10.1103/PhysRevLett.119.067401", "categories": [ "cond-mat.mes-hall", "cond-mat.other" ], "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.", "revisions": [ { "version": "v1", "updated": "2017-08-09T08:26:28.000Z" } ], "analyses": { "keywords": [ "phase transitions", "spin order", "crossover phase", "demonstrate", "multiply-coupled spinor polariton condensates" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable" } } }