Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Alléaume, Romain"'
We investigate the quantization of the Kramers-Kronig (KK) detection technique, initially developed for classical coherent communications. This detection method involves combining the state of interest with a local oscillator on an unbalanced beamspl
Externí odkaz:
http://arxiv.org/abs/2407.20827
We introduce an explicit construction for a key distribution protocol in the Quantum Computational Timelock (QCT) security model, where one assumes that computationally secure encryption may only be broken after a time much longer than the coherence
Externí odkaz:
http://arxiv.org/abs/2311.09164
Autor:
Henry, Antoine, Raghunathan, Ravi, Ricard, Guillaume, Lefaucher, Baptiste, Miatto, Filippo, Belabas, Nadia, Zaquine, Isabelle, Alléaume, Romain
We propose novel methods for the exact synthesis of single-qubit unitaries with high success probability and gate fidelity, considering both time-bin and frequency-bin encodings. The proposed schemes are experimentally implementable with a spectral l
Externí odkaz:
http://arxiv.org/abs/2210.11830
Autor:
Huttner, Bruno, Alléaume, Romain, Diamanti, Eleni, Fröwis, Florian, Grangier, Philippe, Hübel, Hannes, Martin, Vicente, Poppe, Andreas, Slater, Joshua A., Spiller, Tim, Tittel, Wolfgang, Tranier, Benoit, Wonfor, Adrian, Zbinden, Hugo
Publikováno v:
npj Quantum Inf 8, 108 (2022)
A recently published patent (https://www.ipo.gov.uk/p-ipsum/Case/PublicationNumber/GB2590064) has claimed the development of a novel quantum key distribution protocol purporting to achieve long-range quantum security without trusted nodes and without
Externí odkaz:
http://arxiv.org/abs/2210.01636
We report successful joint operation of quantum and classical communications with shared hardware. Leveraging information learned from the classical DSP, low-noise quantum communications (0.009 SNU at 15 km) compatible with 15 Mbit/s QKD is demonstra
Externí odkaz:
http://arxiv.org/abs/2202.06942
Inspired by the methodology used for classical cryptographic hardware, we consider the use of attack ratings in the context of QKD security evaluation. To illustrate the relevance of this approach, we conduct an experimental vulnerability assessment
Externí odkaz:
http://arxiv.org/abs/2010.07815
Publikováno v:
Optical Fiber Communication Conference (OFC) 2020
We give a survey of some of the recent progress made in deploying quantum and classical communications over a shared fiber, focusing in particular on results obtained using continuous-variable QKD.
Comment: OFC 2020, 3 pages, 2 Figures
Comment: OFC 2020, 3 pages, 2 Figures
Externí odkaz:
http://arxiv.org/abs/2005.02486
Autor:
Vyas, Nilesh, Alleaume, Romain
Extending the functionality and overcoming the performance limitation under which QKD can operate requires either quantum repeaters or new security models. Investigating the latter option, we introduce the \textit{Quantum Computational Hybrid} (QCH)
Externí odkaz:
http://arxiv.org/abs/2004.10173
Publikováno v:
Phys. Rev. A 98, 012312 (2018)
We propose an efficient strategy to attack a continuous-variable quantum key distribution (CV-QKD) system, that we call homodyne detector blinding. This attack strategy takes advantage of a generic vulnerability of homodyne receivers: a bright light
Externí odkaz:
http://arxiv.org/abs/1805.01620
Autor:
Marie, Adrien, Alléaume, Romain
Publikováno v:
Phys. Rev. A 95, 012316 (2017)
Generating "locally" the local oscillator is a fundamental requirement for continous-variable quantum key distribution (CV-QKD), both for performance and security reasons. As a consequence, next-generation CV- QKD systems will have to be implemented
Externí odkaz:
http://arxiv.org/abs/1605.03642