Spin order and phase transitions in chains of polariton condensates
Mesoscale and Nanoscale Physics
2017-09-26 v1 Other Condensed Matter
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.
Keywords
Cite
@article{arxiv.1709.07921,
title = {Spin order and phase transitions in chains of polariton condensates},
author = {H. Ohadi and A. J. Ramsay and H. Sigurdsson and Y. del Valle-Inclan Redondo and S. I. Tsintzos and Z. Hatzopoulos and T. C. H. Liew and I. A. Shelykh and Y. G. Rubo and P. G. Savvidis and J. J. Baumberg},
journal= {arXiv preprint arXiv:1709.07921},
year = {2017}
}
Comments
6 pages, 3 figures