Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Tobias Gehring"'
Autor:
Adnan A. E. Hajomer, Ivan Derkach, Radim Filip, Ulrik L. Andersen, Vladyslav C. Usenko, Tobias Gehring
Publikováno v:
Light: Science & Applications, Vol 13, Iss 1, Pp 1-10 (2024)
Abstract To establish a scalable and secure quantum network, a critical milestone is advancing from basic point-to-point quantum key distribution (QKD) systems to the development of inherently multi-user protocols designed to maximize network capacit
Externí odkaz:
https://doaj.org/article/aa3cedd24da54263b82535d7067636d6
Autor:
Adnan A. E. Hajomer, Nitin Jain, Hossein Mani, Hou-Man Chin, Ulrik L. Andersen, Tobias Gehring
Publikováno v:
npj Quantum Information, Vol 8, Iss 1, Pp 1-8 (2022)
Abstract Distributing cryptographic keys over public channels in a way that can provide information-theoretic security is the holy grail for secure communication. This can be achieved by exploiting quantum mechanical principles in so-called quantum k
Externí odkaz:
https://doaj.org/article/cd1341dafa244f82a7bd5b837d5a5061
Autor:
Nitin Jain, Hou-Man Chin, Hossein Mani, Cosmo Lupo, Dino Solar Nikolic, Arne Kordts, Stefano Pirandola, Thomas Brochmann Pedersen, Matthias Kolb, Bernhard Ömer, Christoph Pacher, Tobias Gehring, Ulrik L. Andersen
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
Continuous-variable QKD protocols are usually easier to implement than discrete-variables ones, but their security analyses are less developed. Here, the authors propose and demonstrate in the lab a CVQKD protocol that can generate composable keys se
Externí odkaz:
https://doaj.org/article/d7d2e36f3a5f4381a6246f80cf68e2f0
Autor:
Stefano Pirandola, Carlo Ottaviani, Christian S. Jacobsen, Gaetana Spedalieri, Samuel L. Braunstein, Tobias Gehring, Ulrik L. Andersen
Publikováno v:
npj Quantum Information, Vol 7, Iss 1, Pp 1-7 (2021)
Abstract We consider a quantum relay that is used by two parties to perform several continuous-variable protocols of quantum communication, from entanglement distribution (swapping and distillation) to quantum teleportation, and quantum key distribut
Externí odkaz:
https://doaj.org/article/33253da31ed049fe951594b46796fb39
Publikováno v:
PRX Quantum, Vol 4, Iss 1, p 010330 (2023)
Emerging communication and cryptography applications call for reliable fast unpredictable random number generators. Quantum random number generation allows for the creation of truly unpredictable numbers due to the inherent randomness available in qu
Externí odkaz:
https://doaj.org/article/75f001beddfd436b89c216970915b488
Publikováno v:
npj Quantum Information, Vol 7, Iss 1, Pp 1-6 (2021)
Abstract The secret key rate of a continuous-variable quantum key distribution (CV-QKD) system is limited by excess noise. A key issue typical to all modern CV-QKD systems implemented with a reference or pilot signal and an independent local oscillat
Externí odkaz:
https://doaj.org/article/507e5e56c9ba425fb77a50d85751d1b9
Autor:
Tobias Gehring, Cosmo Lupo, Arne Kordts, Dino Solar Nikolic, Nitin Jain, Tobias Rydberg, Thomas B. Pedersen, Stefano Pirandola, Ulrik L. Andersen
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-11 (2021)
Security analyses for trusted quantum random number generators usually consider only classical side-information. Here, the authors fill this gap by fully characterising the experimental apparatus of a homodyne-based QRNG, assuming that the vacuum flu
Externí odkaz:
https://doaj.org/article/ca01ff6c14f64cc4a33d4de3f43894e5
Autor:
Fabian Furrer, Tobias Gehring, Christian Schaffner, Christoph Pacher, Roman Schnabel, Stephanie Wehner
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-10 (2018)
Oblivious transfer is a standard primitive for cryptography between two parties which do not trust each other. Here, the authors propose a continuous-variable protocol which is secure against a dishonest party with bounded quantum storage capacity, a
Externí odkaz:
https://doaj.org/article/aa26b2fc822b4c86933343beb0ff0bf3
Autor:
Jan M. Binder, Alexander Stark, Nikolas Tomek, Jochen Scheuer, Florian Frank, Kay D. Jahnke, Christoph Müller, Simon Schmitt, Mathias H. Metsch, Thomas Unden, Tobias Gehring, Alexander Huck, Ulrik L. Andersen, Lachlan J. Rogers, Fedor Jelezko
Publikováno v:
SoftwareX, Vol 6, Iss , Pp 85-90 (2017)
Qudi is a general, modular, multi-operating system suite written in Python 3 for controlling laboratory experiments. It provides a structured environment by separating functionality into hardware abstraction, experiment logic and user interface layer
Externí odkaz:
https://doaj.org/article/49a21f0b6bfb4829885e62118060c5d2
Autor:
Kevin Marshall, Christian S. Jacobsen, Clemens Schäfermeier, Tobias Gehring, Christian Weedbrook, Ulrik L. Andersen
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
Performing computation on encrypted data is a power tool for protecting a client’s privacy, but the best solutions achieved by classical approaches are only computationally secure. Here authors present and experimentally demonstrate a quantum proto
Externí odkaz:
https://doaj.org/article/274137ee7caf4b6db3ed8ac5dec3f6ce