Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Georg Harder"'
Autor:
Markus Allgaier, Vahid Ansari, Linda Sansoni, Christof Eigner, Viktor Quiring, Raimund Ricken, Georg Harder, Benjamin Brecht, Christine Silberhorn
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-6 (2017)
In quantum information technology the output of one element often does not match the required frequency and bandwidth of the input of the next element. Here, Allgaieret al. demonstrate simultaneous frequency and bandwidth conversion of single photons
Externí odkaz:
https://doaj.org/article/8ce7092ebca1414287b85c911c63fa46
Autor:
Johannes Georg Harder
Investors and companies require an efficient capital market where financial resources are allocated at a fair price. The challenge is not only to define measures able to calculate the fundamental value of a company but to compare it with actual marke
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::891b2ef3a295c206d414ef29d2754d07
https://doi.org/10.46289/buac4198
https://doi.org/10.46289/buac4198
Autor:
Nicola Montaut, Nidhin Prasannan, Johannes Tiedau, Sonja Barkhofen, Linda Sansoni, Tim J. Bartley, Christof Eigner, Harald Herrmann, Georg Harder, Viktor Quiring, Evan Meyer-Scott, Raimund Ricken, Christine Silberhorn, Thomas Nitsche
Publikováno v:
Advances in Photonics of Quantum Computing, Memory, and Communication XII.
Two important challenges in quantum photonics are to generate useful states with high fidelity, and to detect them and verify their properties. Particularly valuable states are single photons and entangled photon pairs in well-defined optical modes,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62770ccfde16b615504b205d3bacc058
https://doi.org/10.1117/12.2513753
https://doi.org/10.1117/12.2513753
Autor:
Valery S. Shchesnovich, Ch. Silberhorn, Natalia Korolkova, Johannes Tiedau, Dmitri Mogilevtsev, Georg Harder, Vahid Ansari, Tim J. Bartley
Publikováno v:
New Journal of Physics
VS acknowledge support from the National Council for Scientific and Technological Development (CNPq) of Brazil, grant 304129/2015-1, and by the São Paulo Research Foundation (FAPESP), grant 2015/23296-8. DM acknowledge support from the EUproject Hor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6539bb3db527630c7660a4bb4ddd99da
Autor:
Jonathan Roslund, Markus Allgaier, Christine Silberhorn, Benjamin Brecht, Nicolas Treps, Linda Sansoni, John M. Donohue, Vahid Ansari, Georg Harder
Publikováno v:
Conference on Lasers and Electro-Optics.
We employ dispersion-engineered sum-frequency generation to perform temporal-mode selective measurements on quantum light, provably manipulating the structure of multimode downconverted light and demonstrating spectral-phase sensitive seven-dimension
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0682bbc9d5a3a6dcd69bf97ac9c5cafd
https://doi.org/10.1364/cleo_qels.2018.fw4f.1
https://doi.org/10.1364/cleo_qels.2018.fw4f.1
Autor:
Sonja Barkhofen, Christof Eigner, Harald Herrmann, Christine Silberhorn, Evan Meyer-Scott, Johannes Tiedau, Georg Harder, Raimund Ricken, Viktor Quiring, Nidhin Prasannan, Tim J. Bartley, Linda Sansoni, Nicola Montaut
Publikováno v:
Frontiers in Optics / Laser Science.
We present progress on our optimization of photon pair sources using waveguides. The sources show high heralding efficiency, indistinguishability, brightness, and entanglement visibility, and require low pump power.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f50cf8bddafba4013c6a3890a576559
https://doi.org/10.1364/ls.2018.lm3b.1
https://doi.org/10.1364/ls.2018.lm3b.1
Publikováno v:
Physical Review A
Encoding quantum information in the photon temporal mode (TM) offers a robust platform for high-dimensional quantum protocols. The main practical challenge, however, is to design a device that operates on single photons in specific TMs and all cohere
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f76eab8987101dec723efca43cf380d3
http://arxiv.org/abs/1702.03336
http://arxiv.org/abs/1702.03336
Autor:
Vahid Ansari, Georg Harder, Linda Sansoni, Christine Silberhorn, Benjamin Brecht, Nicolas Treps, Jonathan Roslund, Markus Allgaier
Publikováno v:
Conference on Lasers and Electro-Optics.
Accessing a high dimensional Hilbert space spanned by temporal modes (TMs) of single-photons is an intriguing idea for quantum information protocols, though it is experimentally challenging. The quantum pulse gate (QPG), a group-velocity matched sum-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02c470cad37830105b61f1610e621740
https://doi.org/10.1364/cleo_qels.2017.fth4e.4
https://doi.org/10.1364/cleo_qels.2017.fth4e.4
Autor:
Vahid Ansari, Benjamin Brecht, Georg Harder, Christine Silberhorn, Christof Eigner, Viktor Quiring, Markus Allgaier, Linda Sansoni, Raimund Ricken
Publikováno v:
Conference on Lasers and Electro-Optics.
We present a framework for quantum communication using temporal modes of quantum light with orthogonal spectral-temporal shapes. These span a high-dimensional Hilbert space and are ideally suited for efficient quantum information coding for network a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74c18bf2929174a91aea682a9d48bf78
https://doi.org/10.1364/cleo_qels.2017.fth4e.1
https://doi.org/10.1364/cleo_qels.2017.fth4e.1
Autor:
Christine Silberhorn, Thomas Gerrits, A. K. Sharma, Ivan A. Burenkov, Georg Harder, Tim J. Bartley, Sergey V. Polyakov, Elizabeth A. Goldschmidt
We present a method to reconstruct the complete statistical mode structure and optical losses of multimode conjugated optical fields using an experimentally measured joint photon-number probability distribution. We demonstrate that this method evalua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a85dd66404dc7206004d51774c8f8524