Spin order and phase transitions in chains of polariton condensates

Autor:	Ohadi, H., Ramsay, A. J., Sigurdsson, H., Redondo, Y. del Valle-Inclan, Tsintzos, S. I., Hatzopoulos, Z., Liew, T. C. H., Shelykh, I. A., Rubo, Y. G., Savvidis, P. G., Baumberg, J. J.
Rok vydání:	2017
Předmět:	Condensed Matter - Mesoscale and Nanoscale Physics Condensed Matter - Other Condensed Matter
Zdroj:	PRL 119, 067401 (2017)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.119.067401
Popis:	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. Comment: 6 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1709.07921 Zobrazit plný text záznamu View this record from Arxiv