Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Erik Fitzke"'
Publikováno v:
APL Photonics, Vol 8, Iss 2, Pp 026106-026106-19 (2023)
Advances in photonics require photon-number resolved simulations of quantum optical experiments with Gaussian states. We demonstrate a simple and versatile method to simulate the photon statistics of general multimode Gaussian states. The derived gen
Externí odkaz:
https://doaj.org/article/71c6a9e697434b81927b07e24d5fc3c1
Autor:
Erik Fitzke, Lucas Bialowons, Till Dolejsky, Maximilian Tippmann, Oleg Nikiforov, Thomas Walther, Felix Wissel, Matthias Gunkel
Publikováno v:
PRX Quantum, Vol 3, Iss 2, p 020341 (2022)
We present a scalable star-shaped quantum-key-distribution (QKD) optical-fiber network. We use wavelength-division demultiplexing (WDM) of broadband photon pairs to establish key exchange between multiple pairs of participants simultaneously. Our QKD
Externí odkaz:
https://doaj.org/article/be70a6bff5e54385900891cee0bcc689
Publikováno v:
The European Physical Journal Special Topics. 230:1073-1080
In our laboratory, we employ two biphoton sources for quantum key distribution. The first is based on cw parametric down-conversion of photons at 404 nm in PPKTP waveguide chips, while the second is based on the pulsed parametric down-conversion of 7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3f8b842655c502f5a64ac587d94def4
https://doi.org/10.1140/epjs/s11734-021-00081-5
https://doi.org/10.1140/epjs/s11734-021-00081-5
Autor:
Erik Fitzke, Till Dolejsky, Maximilian Tippmann, Lucas Bialowons, Oleg Nikiforov, Felix Wissel, Matthias Gunkel, Thomas Walther
Publikováno v:
Conference on Lasers and Electro-Optics.
We present entanglement-based quantum key distribution in a star-shaped network with time-bin coding. We demonstrate key exchange under typical operation conditions for metropolitan-scale networks. Without much efforts, it is scalable to more than 10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ec7af046ab09f129ce871740b384214
https://doi.org/10.1364/cleo_qels.2022.ftu4a.1
https://doi.org/10.1364/cleo_qels.2022.ftu4a.1
Autor:
Erik Fitzke, Lucas Bialowons, Till Dolejsky, Maximilian Tippmann, Oleg Nikiforov, Thomas Walther, Felix Wissel, Matthias Gunkel
We present a scalable star-shaped quantum key distribution (QKD) optical fiber network. We use wavelength-division demultiplexing (WDM) of broadband photon pairs to establish key exchange between multiple pairs of participants simultaneously. Our QKD
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe4ed4f9ed1134adde492a68b779ea40
http://arxiv.org/abs/2110.13795
http://arxiv.org/abs/2110.13795
Publikováno v:
Quantum Information and Measurement VI 2021.
Simultaneous pairwise quantum key distribution between four parties was demonstrated by implementing an entanglement-based phase-time coding protocol with a type-0 SPDC photon source. The star-shaped network is scalable to dozens of users.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9285dd79f706a79f9c776af526a43629
https://doi.org/10.1364/qim.2021.m2c.4
https://doi.org/10.1364/qim.2021.m2c.4
We report on the first realization of time-dependent quantum detector tomography for commercially available InGaAs avalanche photo detectors. For the construction of appropriate time-dependent POVMs from experimentally measured data, we introduce a n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44873a27b993bfc9e388eddba3125395