Frequency feedback for two-photon interference from separate quantum dots

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dc.identifier.uri Zopf, Michael ger Macha, Tobias ger Keil, Robert ger Urunuela, Eduardo ger Chen, Yan ger Alt, Wolfgang ger Ratschbacher, Lothar ger Ding, Fei ger Meschede, Dieter ger Schmidt, Oliver G. ger 2019-09-17T09:32:33Z 2019-09-17T09:32:33Z 2018
dc.identifier.citation Zopf, M. et al.: Frequency feedback for two-photon interference from separate quantum dots. In: Physical Review B 98 (2018), 161302. DOI: ger
dc.description.abstract We employ active feedback to stabilize the frequency of single photons emitted by two separate quantum dots to an atomic standard. The transmission of a rubidium-based Faraday filter serves as the error signal for frequency stabilization. We achieve a residual frequency deviation of <30 MHz, which is less than 1.5% of the quantum dot linewidth. Long-term stability is demonstrated by Hong-Ou-Mandel interference between photons from the two quantum dots. Their internal dephasing limits the expected visibility to V = 40%. We observe V_lock = (41 ± 5)% for frequency-stabilized dots as opposed to Vfree = (31 ± 7)% for free-running emission. Our technique reaches the maximally expected visibility for the given system and therefore facilitates quantum networks with indistinguishable photons from distributed sources. ger
dc.language.iso eng ger
dc.publisher College Park : American Physical Society
dc.relation.ispartofseries Physical Review B 98 (2018) ger
dc.rights Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. ger
dc.subject Faraday effect eng
dc.subject Network stability eng
dc.subject Piezoelectricity eng
dc.subject Quantum optics eng
dc.subject Quantum repeaters eng
dc.subject Single photon sources eng
dc.subject.ddc 530 | Physik ger
dc.title Frequency feedback for two-photon interference from separate quantum dots ger
dc.type article ger
dc.type Text ger
dc.relation.doi 10.1103/PhysRevB.00.001300
dc.description.version publishedVersion ger
tib.accessRights frei zug�nglich ger

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