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복잡계 이론물리 연구단
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Driven-dissipative spin chain model based on exciton-polariton condensates

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Title
Driven-dissipative spin chain model based on exciton-polariton condensates
Author(s)
H. Sigurdsson; A. J. Ramsay; H. Ohadi; Y. G. Rubo; T. C. H. Liew; J. J. Baumberg; I. A. Shelykh
Publication Date
2017-10
Journal
PHYSICAL REVIEW B, v.96, no.15, pp.155403 -
Publisher
AMER PHYSICAL SOC
Abstract
An infinite chain of driven-dissipative condensate spins with uniform nearest-neighbor coherent coupling is solved analytically and investigated numerically. Above a critical occupation threshold the condensates undergo spontaneous spin bifurcation (becoming magnetized) forming a binary chain of spin-up or spin-down states. Minimization of the bifurcation threshold determines the magnetic order as a function of the coupling strength. This allows control of multiple magnetic orders via adiabatic (slow ramping of) pumping. In addition to ferromagnetic and antiferromagnetic ordered states we show the formation of a paired-spin ordered state | . . . ↑↑↓↓ . . . as a consequence of the phase degree of freedom between condensates. ©2017 American Physical Society
URI
http://pr.ibs.re.kr/handle/8788114/3991
DOI
10.1103/PhysRevB.96.155403
ISSN
2469-9950
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > Journal Papers (저널논문)
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