Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Petru Tighineanu"'
Publikováno v:
Physical Review X, Vol 8, Iss 3, p 031084 (2018)
Machine learning with artificial neural networks is revolutionizing science. The most advanced challenges require discovering answers autonomously. In the domain of reinforcement learning, control strategies are improved according to a reward functio
Externí odkaz:
https://doaj.org/article/a2fc5036028f463993820ffde303eede
Autor:
Andreas Michalowski, Alexander Ilin, Alexander Kroschel, Stephanie Karg, Peter Stritt, Adina Dais, Sebastian Becker, Gerhard Kunz, Steffen Sonntag, Martin Lustfeld, Petru Tighineanu, Volkher Onuseit, Michael Haas, Thomas Graf, Heiko Ridderbusch
Publikováno v:
Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXVIII.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::917688f86a808b6abc4ce3e811d16a5c
https://doi.org/10.1117/12.2653604
https://doi.org/10.1117/12.2653604
Publikováno v:
Tighineanu, P, Dreessen, C L, Flindt, C, Lodahl, P & Sørensen, A S 2018, ' Phonon Decoherence of Quantum Dots in Photonic Structures : Broadening of the Zero-Phonon Line and the Role of Dimensionality ', Physical Review Letters, vol. 120, no. 25, 257401 . https://doi.org/10.1103/PhysRevLett.120.257401
Physical Review Letters
Physical Review Letters
We develop a general microscopic theory describing the phonon decoherence of quantum dots and indistinguishability of the emitted photons in photonic structures. The coherence is found to depend fundamentally on the dimensionality of the structure re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f26af5b73bea7e126c46b5ee119fec80
http://juuli.fi/Record/0331185118
http://juuli.fi/Record/0331185118
Autor:
Chris L. Dreeßen, Xiaoyan Zhou, Petru Tighineanu, Claudéric Ouellet-Plamondon, Peter Lodahl, Anders S. Sørensen, Leonardo Midolo
Publikováno v:
Quantum Science and Technology
Dreessen, C L, Ouellet-Plamondon, C, Tighineanu, P, Zhou, X, Midolo, L, Sørensen, A S & Lodahl, P 2018, ' Suppressing phonon decoherence of high performance single-photon sources in nanophotonic waveguides ', Quantum Science and Technology, vol. 4, 015003 . https://doi.org/10.1088/2058-9565/aadbb8
Dreessen, C L, Ouellet-Plamondon, C, Tighineanu, P, Zhou, X, Midolo, L, Sørensen, A S & Lodahl, P 2018, ' Suppressing phonon decoherence of high performance single-photon sources in nanophotonic waveguides ', Quantum Science and Technology, vol. 4, 015003 . https://doi.org/10.1088/2058-9565/aadbb8
The fundamental process limiting the coherence of quantum-dot based single-photon sources is the interaction with phonons. We study the effect of phonon decoherence on the indistinguishability of single photons emitted from a quantum dot embedded in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::810ee6146e78bf07ed9f4c3c81c2956c
http://arxiv.org/abs/1806.05925
http://arxiv.org/abs/1806.05925
Publikováno v:
Physical Review X
Physical Review X, Vol 8, Iss 3, p 031084 (2018)
Physical Review X, Vol 8, Iss 3, p 031084 (2018)
Machine learning with artificial neural networks is revolutionizing science. The most advanced challenges require discovering answers autonomously. This is the domain of reinforcement learning, where control strategies are improved according to a rew
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d73b4fd865ab48836fd155377ff72d33
Autor:
Andreas D. Wieck, Tommaso Pregnolato, Rüdiger Schott, Arne Ludwig, Matthias C. Löbl, Immo Söllner, Chris L. Dreeßen, Søren Stobbe, Andreas V. Kuhlmann, Peter Lodahl, Alisa Javadi, Raphaël S. Daveau, Jin D. Song, Petru Tighineanu, Henri Thyrrestrup, Suk In Park, Richard J. Warburton, Leonardo Midolo, Gabija Kiršanskė
Publikováno v:
Physical Review B
Kirsanské, G, Nielsen, H T, Daveau, R S, Dreessen, C L, Pregnolato, T, Midolo, L, Tighineanu, P, Javadi, A, Stobbe, S, Ludwig, A, Schott, R, Wieck, A D, Park, S I, Song, J D, Kuhlmann, A, Söllner, I, Löbel, M, Warburton, R J & Lodahl, P 2017, ' Indistinguishable and efficient single photons from a quantum dot in a planar nanobeam waveguide ', Physical Review B, vol. 96, 165306 . https://doi.org/10.1103/PhysRevB.96.165306
Kirsanské, G, Nielsen, H T, Daveau, R S, Dreessen, C L, Pregnolato, T, Midolo, L, Tighineanu, P, Javadi, A, Stobbe, S, Ludwig, A, Schott, R, Wieck, A D, Park, S I, Song, J D, Kuhlmann, A, Söllner, I, Löbel, M, Warburton, R J & Lodahl, P 2017, ' Indistinguishable and efficient single photons from a quantum dot in a planar nanobeam waveguide ', Physical Review B, vol. 96, 165306 . https://doi.org/10.1103/PhysRevB.96.165306
We demonstrate a high-purity source of indistinguishable single photons using a quantum dot embedded in a nanophotonic waveguide. The source features a near-unity internal coupling efficiency and the collected photons are efficiently coupled off-chip
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37fe320b6ff3cc1808b360d3d95bed30
http://arxiv.org/abs/1701.08131
http://arxiv.org/abs/1701.08131
Autor:
Eugene S. Polzik, Andreas Barg, Tommaso Pregnolato, Petru Tighineanu, Gabija Kiršanskė, Peter Lodahl, Leonardo Midolo, Søren Stobbe, Albert Schliesser, Atac Imamoǧlu
Publikováno v:
Barg, A, Midolo, L, Kirsanské, G, Tighineanu, P, Pregnolato, T, İmamoǧlu, A, Lodahl, P, Schliesser, A, Stobbe, S & Polzik, E S 2018, ' Carrier-mediated optomechanical forces in semiconductor nanomembranes with coupled quantum wells ', Physical Review B, vol. 98, 155316 . https://doi.org/10.1103/PhysRevB.98.155316
Physical Review B, 98 (15)
Physical Review B
Physical Review B, 98 (15)
Physical Review B
In the majority of optomechanical experiments, the interaction between light and mechanical motion is mediated by radiation pressure, which arises from momentum transfer of reflecting photons. This is an inherently weak interaction, and optically gen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0942ea87b941dd2028500ded25108ad
Publikováno v:
Daveau, R S, Tighineanu, P, Lodahl, P & Stobbe, S 2015, ' Optical refrigeration with coupled quantum wells ', Optics Express, vol. 23, no. 19, pp. 25340-25349 . https://doi.org/10.1364/OE.23.025340
Refrigeration of a solid-state system with light has potential applications for cooling small-scale electronics and photonics. We show theoretically that two coupled semiconductor quantum wells are efficient cooling media for optical refrigeration be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8683dce3073b2023ee871b0351caa16
https://curis.ku.dk/portal/da/publications/optical-refrigeration-with-coupled-quantum-wells(f78bb906-7a32-4647-904c-99eda4141775).html
https://curis.ku.dk/portal/da/publications/optical-refrigeration-with-coupled-quantum-wells(f78bb906-7a32-4647-904c-99eda4141775).html
Autor:
Harvey E. Beere, Peter Lodahl, David A. Ritchie, Petru Tighineanu, Raphaël S. Daveau, Søren Stobbe, Tau B Lehmann
Publikováno v:
Physical Review Letters
Tighineanu, P, Daveau, R S, Lehmann, T B, E. Beere, H, A. Ritchie, D, Lodahl, P & Stobbe, S 2016, ' Single-photon superradiance from a quantum dot ', Physical Review Letters, vol. 116, 163604 . https://doi.org/10.1103/PhysRevLett.116.163604
Tighineanu, P, Daveau, R S, Lehmann, T B, E. Beere, H, A. Ritchie, D, Lodahl, P & Stobbe, S 2016, ' Single-photon superradiance from a quantum dot ', Physical Review Letters, vol. 116, 163604 . https://doi.org/10.1103/PhysRevLett.116.163604
We report on the observation of single-photon superradiance from an exciton in a semiconductor quantum dot. The confinement by the quantum dot is strong enough for it to mimic a two-level atom, yet sufficiently weak to ensure superradiance. The elect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63da172634154372b315b09bd9b0e3bd
Publikováno v:
Physical Review Letters. 113
The electromagnetic-vacuum-field fluctuations are intimately linked to the process of spontaneous emission of light. Atomic emitters cannot probe electric- and magnetic-field fluctuations simultaneously because electric and magnetic transitions corre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2a2150e777aa233e342d878b5ca7499
https://doi.org/10.1103/physrevlett.113.043601
https://doi.org/10.1103/physrevlett.113.043601