Spin order and phase transitions in chains of polariton condensates

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

doi:10.1103/PhysRevLett.119.067401

Spin order and phase transitions in chains of polariton condensates

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

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

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 four-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 eight-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 nonequilibrium spin lattice.

Original language	English
Article number	067401
Number of pages	5
Journal	Physical Review Letters
Volume	119
Issue number	6
Early online date	8 Aug 2017
DOIs	https://doi.org/10.1103/PhysRevLett.119.067401
Publication status	Published - 11 Aug 2017

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10.1103/PhysRevLett.119.067401

https://arxiv.org/abs/1709.07921v1

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@article{74e1d3dfee144ad7b6cc9c69f185b7cb,

title = "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 four-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 eight-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 nonequilibrium spin lattice.",

author = "H. Ohadi and Ramsay, \{A. J.\} and H. Sigurdsson and \{Del Valle-Inclan Redondo\}, Y. and Tsintzos, \{S. I.\} and Z. Hatzopoulos and Liew, \{T. C.H.\} and Shelykh, \{I. A.\} and Rubo, \{Y. G.\} and Savvidis, \{P. G.\} and Baumberg, \{J. J.\}",

note = "We acknowledge Grants No. EPSRC EP/L027151/1, No. EU INDEX 289968, No. ERC “POLAFLOW” Starting Grant, ERC LINASS 320503, Spanish MEC (MAT2008- 01555), Mexican CONACYT 251808, Leverhulme Trust Grant No. VP1-2013-011 and Fundaci{\'o}n La Caixa. H. S. and I. S. acknowledge support by the Research Fund of the University of Iceland, The Icelandic Research Fund, Grant No. 163082-051. T. L. was supported by the MOE AcRF Tier 1 Grant No. 2016-T1-001-084. P. S. acknowledges financial support from the Stavros Niarchos Foundation, “ARCHERS” project.",

year = "2017",

month = aug,

day = "11",

doi = "10.1103/PhysRevLett.119.067401",

language = "English",

volume = "119",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "6",

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TY - JOUR

T1 - Spin order and phase transitions in chains of polariton condensates

AU - Ohadi, H.

AU - Ramsay, A. J.

AU - Sigurdsson, H.

AU - Del Valle-Inclan Redondo, Y.

AU - Tsintzos, S. I.

AU - Hatzopoulos, Z.

AU - Liew, T. C.H.

AU - Shelykh, I. A.

AU - Rubo, Y. G.

AU - Savvidis, P. G.

AU - Baumberg, J. J.

N1 - We acknowledge Grants No. EPSRC EP/L027151/1, No. EU INDEX 289968, No. ERC “POLAFLOW” Starting Grant, ERC LINASS 320503, Spanish MEC (MAT2008- 01555), Mexican CONACYT 251808, Leverhulme Trust Grant No. VP1-2013-011 and Fundación La Caixa. H. S. and I. S. acknowledge support by the Research Fund of the University of Iceland, The Icelandic Research Fund, Grant No. 163082-051. T. L. was supported by the MOE AcRF Tier 1 Grant No. 2016-T1-001-084. P. S. acknowledges financial support from the Stavros Niarchos Foundation, “ARCHERS” project.

PY - 2017/8/11

Y1 - 2017/8/11

N2 - 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 four-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 eight-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 nonequilibrium spin lattice.

AB - 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 four-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 eight-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 nonequilibrium spin lattice.

UR - https://arxiv.org/abs/1709.07921

UR - https://www.scopus.com/pages/publications/85027890373

U2 - 10.1103/PhysRevLett.119.067401

DO - 10.1103/PhysRevLett.119.067401

M3 - Article

AN - SCOPUS:85027890373

SN - 0031-9007

VL - 119

JO - Physical Review Letters

JF - Physical Review Letters

IS - 6

M1 - 067401

ER -

Spin order and phase transitions in chains of polariton condensates

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