Tunable magnetic alignment between trapped exciton-polariton condensates

Autor:	Ohadi, H., Redondo, Y. del Valle-Inclan, Dreismann, A., Rubo, Y. G., Pinsker, F., Tsintzos, S. I., Hatzopoulos, Z., Savvidis, P. G., Baumberg, J. J.
Rok vydání:	2016
Předmět:	Condensed Matter - Other Condensed Matter
Zdroj:	Phys. Rev. Lett. 116, 106403 (2016)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.116.106403
Popis:	Tunable spin correlations are found to arise between two neighboring trapped exciton-polariton condensates which spin-polarize spontaneously. We observe a crossover from an antiferromagnetic- to a ferromagnetic pair state by reducing the coupling barrier in real-time using control of the imprinted pattern of pump light. Fast optical switching of both condensates is then achieved by resonantly but weakly triggering only a single condensate. These effects can be explained as the competition between spin bifurcations and spin-preserving Josephson coupling between the two condensates, and open the way to polariton Bose-Hubbard ladders. Comment: 5 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1603.02830 Zobrazit plný text záznamu View this record from Arxiv