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Optical coupling of two distant InAs/GaAs quantum dots by a photonic-crystal microcavity

AuthorsGallardo, E.; Martínez Rodríguez, Luis Javier ; Nowak, A. K.; Sarkar, D.; Van der Meulen, H. P.; Calleja, J. M.; Tejedor, C.; Prieto-González, Iván ; Granados, Daniel ; Taboada, Alfonso G.; García Martínez, Jorge Manuel ; García Martínez, Jorge Manuel ; Postigo, Pablo Aitor
Issue Date11-May-2010
PublisherAmerican Physical Society
CitationPhysical Review B 81, 193301 (2010)
AbstractLong distance (1.4 μm) interaction of two different InAs/GaAs quantum dots in a photonic crystal microcavity is observed. Simultaneous coupling of both quantum dots to the cavity is demonstrated by Purcell effect measurements. Resonant optical excitation in the p state of any of the quantum dots, results in an increase in the s-state emission of the other one. The cavity-mediated coupling can be controlled by varying the excitation intensity. These results represent an experimental step toward the realization of quantum logic operations using distant solid-state qubits.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevB.81.193301
Appears in Collections:(IMN-CNM) Artículos
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