Show simple item record

dc.contributor.authorDreismann, Aen
dc.contributor.authorCristofolini, Pen
dc.contributor.authorBalili, Ren
dc.contributor.authorChristmanna, Gen
dc.contributor.authorPinsker, Fen
dc.contributor.authorBerloff, Nataliaen
dc.contributor.authorHatzopoulos, Zen
dc.contributor.authorSavvidis, Pavlosen
dc.contributor.authorBaumberg, Jeremyen
dc.date.accessioned2014-07-04T10:28:11Z
dc.date.available2014-07-04T10:28:11Z
dc.date.issued2014-06-02en
dc.identifier.citationAlexander Dreismann, Peter Cristofolini, Ryan Balili, Gabriel Christmann, Florian Pinsker, Natasha G. Berloff, Zacharias Hatzopoulos, Pavlos G. Savvidis, and Jeremy J. Baumberg Coupled counterrotating polariton condensates in optically defined annular potentials PNAS 2014 ; published ahead of print June 2, 2014, doi:10.1073/pnas.1401988111en
dc.identifier.issn0027-8424
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/245378
dc.description.abstractPolariton condensates are macroscopic quantum states formed by half-matter half-light quasiparticles, thus connecting the phenomena of atomic Bose-Einstein condensation, superfluidity and photon lasing. Here we report the spontaneous formation of such condensates in programmable potential landscapes generated by two concentric circles of light. The imposed geometry supports the emergence of annular states that extend up to 100 μm, yet are fully coherent and exhibit a spatial structure that remains stable for minutes at a time. These states exhibit a petal-like intensity distribution arising due to the interaction of two superfluids counter-propagating in the circular waveguide defined by the optical potential. In stark contrast to annular modes in conventional lasing systems, the resulting standing wave patterns exhibit only minimal overlap with the pump laser itself. We theoretically describe the system using a complex Ginzburg-Landau equation, which indicates why the condensate wants to rotate. Experimentally, we demonstrate the ability to precisely control the structure of the petal-condensates both by carefully modifying the excitation geometry as well as perturbing the system on ultrafast timescales to reveal unexpected superfluid dynamics.
dc.description.sponsorshipWe acknowledge grants EPSRC EP/G060649/1, EU INDEX 289968, Spanish MEC (MAT2008-01555), Greek GSRT ARISTEIA programs Irakleitos II and Apollo and the Skolkovo Foundation.
dc.languageEnglishen
dc.language.isoenen
dc.publisherPNAS
dc.subjectPolaritonen
dc.subjectCondensateen
dc.subjectInterferometeren
dc.titleCoupled counter-rotating polariton condensates in optically defined annular potentialsen
dc.typeArticle
dc.description.versionThis version is the author accepted manuscript. The final published version can be found on the PNAS website here: http://www.pnas.org/content/early/2014/05/30/1401988111.abstracten
prism.publicationDate2014en
prism.publicationNamePNASen
dc.rioxxterms.funderEP/G060649/1
dc.rioxxterms.projectidEPSRC
rioxxterms.versionofrecord10.1073/pnas.1401988111en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2014-06-02en
dc.contributor.orcidBerloff, Natalia [0000-0003-2114-4321]
dc.contributor.orcidBaumberg, Jeremy [0000-0002-9606-9488]
dc.identifier.eissn1091-6490
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/G060649/1)
pubs.funder-project-idEC FP7 MC ITN (289968)


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record