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Stochastic spin flips in polariton condensates : nonlinear tuning from GHz to sub-Hz

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dc.contributor.authorRedondo, Yago del Valle-Inclan
dc.contributor.authorOhadi, Hamid
dc.contributor.authorRubo, Yuri G.
dc.contributor.authorBeer, Orr
dc.contributor.authorRamsay, Andrew J.
dc.contributor.authorTsintzos, Symeon
dc.contributor.authorHatzopoulos, Zacharias
dc.contributor.authorSavvidis, Pavlos G.
dc.contributor.authorBaumberg, Jeremy J.
dc.date.accessioned2018-08-10T13:30:06Z
dc.date.available2018-08-10T13:30:06Z
dc.date.issued2018-07-26
dc.identifier255251830
dc.identifier1c17be97-bdcc-4554-ada7-bdbbecf3d0cb
dc.identifier000440063900001
dc.identifier85051652376
dc.identifier000440063900001
dc.identifier.citationRedondo , Y D V-I , Ohadi , H , Rubo , Y G , Beer , O , Ramsay , A J , Tsintzos , S , Hatzopoulos , Z , Savvidis , P G & Baumberg , J J 2018 , ' Stochastic spin flips in polariton condensates : nonlinear tuning from GHz to sub-Hz ' , New Journal of Physics , vol. 20 , 075008 . https://doi.org/10.1088/1367-2630/aad377en
dc.identifier.issn1367-2630
dc.identifier.otherORCID: /0000-0001-6418-111X/work/47356707
dc.identifier.urihttps://hdl.handle.net/10023/15799
dc.descriptionWe acknowledge Grants No. EPSRC EP/L027151/1, ERC LINASS 320503, Leverhulme Trust Grant No. VP1-2013-011 and bilateral Greece-Russia 'Polisimulator' project co-financed by Greece and the EU Regional Development Fund. PS acknowledges Saint-Petersburg State University research grant 11.34.2.2012 and ΑΕΝΑΟ project co-financed by the European Union ERDF and Greek national NSRF 2014-2020 funds. ST acknowledges financial support from the Stavros Niarchos Foundation, 'ARCHERS' project. AJR acknowledges support of Horizon 2020 programme (No. FETPROACT-2016 732894-HOT). YGR acknowledges support from CONACYT (Mexico) grant No. 251808 and by the Institute for Basic Science in Korea (IBS-R024-D1).en
dc.description.abstractThe stability of spin of macroscopic quantum states to intrinsic noise is studied for non-resonantly-pumped optically-trapped polariton condensates. We demonstrate flipping between the two spin-polarised states with >104 slow-down of the flip rate by tuning the optical pump power. Individual spin flips faster than 50 ps are time resolved using single-shot streak camera imaging. We reproduce our results within a mean-field model accounting for cross-spin scattering between excitons and polaritons, yielding a ratio of cross-to co-spin scattering of similar to ∼0.6, in contrast with previous literature suggestions.
dc.format.extent8
dc.format.extent1613036
dc.language.isoeng
dc.relation.ispartofNew Journal of Physicsen
dc.subjectExciton-polaritonen
dc.subjectSpin dynamicsen
dc.subjectNon-equilibrium condensateen
dc.subjectDriven-dissipativeen
dc.subjectChaosen
dc.subjectQC Physicsen
dc.subjectNDASen
dc.subject.lccQCen
dc.titleStochastic spin flips in polariton condensates : nonlinear tuning from GHz to sub-Hzen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.identifier.doi10.1088/1367-2630/aad377
dc.description.statusPeer revieweden


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