N
Nika Akopian
Researcher at Technical University of Denmark
Publications - 65
Citations - 2981
Nika Akopian is an academic researcher from Technical University of Denmark. The author has contributed to research in topics: Quantum dot & Nanowire. The author has an hindex of 22, co-authored 63 publications receiving 2726 citations. Previous affiliations of Nika Akopian include Technion – Israel Institute of Technology & Kavli Institute of Nanoscience.
Papers
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Journal ArticleDOI
Entangled Photon Pairs from Semiconductor Quantum Dots
Nika Akopian,Netanel H. Lindner,Eilon Poem,Y. Berlatzky,Joseph E. Avron,David Gershoni,Brian D. Gerardot,Pierre Petroff +7 more
TL;DR: Tomographic analysis demonstrates that the polarization state of pairs of photons emitted from a biexciton decay cascade becomes entangled when spectral filtering is applied and that the remanent information in the quantum dot degrees of freedom is negligible.
Journal ArticleDOI
Bright single-photon sources in bottom-up tailored nanowires.
Michael E. Reimer,Gabriele Bulgarini,Nika Akopian,Moïra Hocevar,Maaike Bouwes Bavinck,Marcel A. Verheijen,Erik P. A. M. Bakkers,Erik P. A. M. Bakkers,Leo P. Kouwenhoven,Val Zwiller +9 more
TL;DR: A 24-fold enhancement in the single-photon flux, corresponding to a light-extraction efficiency of 42%.
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Crystal Phase Quantum Dots
TL;DR: In this article, a single quantum dot device defined solely by crystal phase in a chemically homogeneous nanowire and observed single photon generation was constructed. And the results showed that this type of carrier confinement represents a novel degree of freedom in device design at the nanoscale.
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Hybrid semiconductor-atomic interface: slowing down single photons from a quantum dot
TL;DR: In this paper, a hybrid semiconductor-atomic interface was proposed to slow down a single photon emitted from a quantum dot by 15 times its temporal width, which is attractive for the implementation of quantum memories and quantum repeaters.
Journal ArticleDOI
A light-hole exciton in a quantum dot
Yongheng Huo,B. J. Witek,Santosh Kumar,J. R. Cardenas,Jiaxiang Zhang,Nika Akopian,Nika Akopian,Ranber Singh,Eugenio Zallo,Raphael Grifone,Dominik Kriegner,Rinaldo Trotta,Fei Ding,J. Stangl,Valery Zwiller,Gabriel Bester,Armando Rastelli,Oliver G. Schmidt +17 more
TL;DR: Light-hole excitons were observed by applying elastic stress to initially unstrained gallium arsenide-based dots as mentioned in this paper, and the quasiparticles were identified by their optical emission signature.