Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Daniel Ljunggren"'
Autor:
Abraham Ascher, Annelies Augustyns, Ramona Bräu, Tim Buchen, Tamar Cohn Gazit, Katharina Friedla, Dariusz Gierczak, Anja Golebiowski, Monika Heinemann, Lisa Höhenleitner, Agnieszka Jabłońska, Karolina Jara, Jerzy Kichler, Sabine E. Koesters Gensini, Vasco Kretschmann, Simona Leonardi, Daniel Ljunggren, Maria Luft, Hagen Markwardt, Johann Nicolai, Katrin Schmidt, Małgorzata Stolarska-Fronia, Hans-Ulrich Wagner, Tamara Włodarczyk
Im schlesischen Breslau (seit 1945 Wrocław/Polen) lebte in der Zwischenkriegszeit die drittgrößte jüdische Gemeinde des Deutschen Reichs (nach Berlin und Frankfurt) mit etwa 24.000 Mitgliedern. Sie erlebten die Ausgrenzung aus dem städtischen Ra
We investigate the efficiency of atom-cavity based photon-generation schemes to deliver single photons of arbitrary temporal shape. Our model applies to Raman transitions in three-level atoms with one branch of the transition driven by a laser pulse,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aecf26d4deeb20f9dc7ba72dd366a128
https://ora.ox.ac.uk/objects/uuid:52e546bc-3660-4737-896b-47feac10a6bf
https://ora.ox.ac.uk/objects/uuid:52e546bc-3660-4737-896b-47feac10a6bf
Autor:
Axel Kuhn, Daniel Ljunggren
Publikováno v:
Contemporary Physics. 51:289-313
We introduce the basic concepts and characteristic properties of single-photon emitters based on resonator effects in optical cavities, and provide a review of the most prominent implementations. First we discuss the elementary principles of cavity q
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b08661b67a51363b629a087cee182f6a
https://doi.org/10.1080/00107511003602990
https://doi.org/10.1080/00107511003602990
Autor:
Daniel Ljunggren, Mohamed Bourennane, A. Hening, Anders Karlsson, Juan Pena Ciscar, P. Jonsson
Publikováno v:
Scopus-Elsevier
We present experiments on long wavelength (λ = 1.55 μm) 'plug and play' quantum cryptography systems. We discuss the performance of single-photon detectors at λ = 1.55 μm. Furthermore, we address ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::870001f13cc024a9bf8911ce264559fa
https://doi.org/10.1080/09500340008244060
https://doi.org/10.1080/09500340008244060
Autor:
A. Hening, Tedros Tsegaye, F. Gibson, Daniel Ljunggren, P. Jonsson, E. Sundberg, Anders Karlsson, Mohamed Bourennane
Publikováno v:
Scopus-Elsevier
Summary form only given. Quantum cryptography is a technique for establishing a fundamentally secure cryptographic key, using the encoding of the key on single photon pulses. In the recent years here has been a remarkable progress in experimental imp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0482553b73efd756e6d19bc4c98a5fa
https://pubmed.ncbi.nlm.nih.gov/19396294
https://pubmed.ncbi.nlm.nih.gov/19396294
Autor:
Matt Dixon, Marc Brunet, Marco Bauriedel, Levente Peterffy, Mike Corriero, Serg Souleiman, Tiberius Viris, Brian Recktenwald, Emrah Elmasli, Carlos Cabrera, Daniel Ljunggren, Daarken, Nykolai Aleksander, Graven Tung, Chee Ming Wong, Richard Tilbury, Daniela Uhlig, David Revoy, Nathaniel West, Ron Crabb, Stephanie R. Loftis, Sergey Musin, Anne Pogoda, Pascal Raimbault, Mélanie Delon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::875e80f2d8e255c02315bb62a6dfb1c5
https://doi.org/10.1016/b978-0-240-52174-9.50056-7
https://doi.org/10.1016/b978-0-240-52174-9.50056-7
Autor:
J. Waldeback, Marcin Swillo, Guilherme B. Xavier, Sebastien Sauge, Sebastian Albert-Seifried, Daniel Ljunggren, Anders Karlsson, Q. Wang, Maria Tengner
Publikováno v:
2007 9th International Conference on Transparent Optical Networks.
We discuss recent work in quantum communication, and in some details present a bright, narrowband, portable, quasi-phase-matched two-crystal source generating polarization-entangled photon pairs at 809 nm and 1555 nm. We also show how the single-phot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf31e21be93d6b209e4ee221a6937d8b
https://doi.org/10.1109/icton.2007.4296023
https://doi.org/10.1109/icton.2007.4296023
Publikováno v:
SPIE Proceedings.
We present two types of photon sources designed for secure quantum communication, e.g. for quantum cryptography. Both types are based on the creation of photon pairs by spontaneous parametric downconversion in nonlinear crystals. The first is a heral
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddba73d56ec87cec0f9f62df22242819
https://doi.org/10.1117/12.689780
https://doi.org/10.1117/12.689780
Autor:
Daniel Ljunggren, Maria Tengner
Publikováno v:
Physical Review A. 72
We present a theoretical and experimental investigation of the emission characteristics and the flux of photon pairs generated by spontaneous parametric downconversion in quasi-phase matched bulk crystals for the use in quantum communication sources.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc43440624d6d459ee30093c6538253e
https://doi.org/10.1103/physreva.72.062301
https://doi.org/10.1103/physreva.72.062301