English
Related papers

Related papers: Drone- and Vehicle-Based Quantum Key Distribution

200 papers

Quantum mechanics allows the distribution of intrinsically secure encryption keys by optical means. Twin-field quantum key distribution is the most promising technique for its implementation on long-distance fibers, but requires stabilizing…

Quantum key distribution (QKD) has been emerged as a promising solution for guaranteeing information-theoretic security. Inspired by this, a great amount of research effort has been recently put on designing and testing QKD systems as well…

We developed a one-way quantum key distribution (QKD) system based upon a planar lightwave circuit (PLC) interferometer. This interferometer is expected to be free from the backscattering inherent in commercially available two-way QKD…

Quantum Physics · Physics 2009-11-13 Yoshihiro Nambu , Ken'ichiro Yoshino , Akihisa Tomita

Quantum key distribution -- the establishment of information-theoretically secure keys based on quantum physics -- is mainly limited by its practical performance, which is characterised by the dependence of the key rate on the channel…

Quantum Physics · Physics 2023-02-13 Pei Zeng , Hongyi Zhou , Weijie Wu , Xiongfeng Ma

We describe systems and methods for the deployment of global quantum key distribution (QKD) networks covering transoceanic, long-haul, metro, and access segments of the network. A comparative study of the state-of-the-art QKD technologies…

Quantum Physics · Physics 2021-03-01 Jing Wang , Bernardo Huberman

Quantum cryptography is arguably the fastest growing area in quantum information science. Novel theoretical protocols are designed on a regular basis, security proofs are constantly improving, and experiments are gradually moving from…

Quantum Key Distribution~(QKD) is a technology that enables the exchange of private encryption keys between two legitimate parties, using protocols that involve quantum mechanics principles. The rate at which secret keys can be exchanged…

Signal Processing · Electrical Eng. & Systems 2021-07-19 Milo Grillo , Alexis A. Dowhuszko , Mohammad-Ali Khalighi , Jyri Hämäläinen

Quantum key distribution (QKD) provides an attractive means for securing communications in optical fibre networks. However, deployment of the technology has been hampered by the frequent need for dedicated dark fibres to segregate the very…

Device-independent quantum key distribution aims to provide key distribution schemes whose security is based on the laws of quantum physics but which does not require any assumptions about the internal working of the quantum devices used in…

Quantum Physics · Physics 2011-03-18 Lluis Masanes , Stefano Pironio , Antonio Acin

The field of space communications is the realm of communication technologies where diffraction and atmospheric effects, both of which contribute to loss and noise, become overriding. The pertinent questions here are how and at which rate…

Quantum Physics · Physics 2023-10-27 Masoud Ghalaii , Stefano Pirandola

Quantum key distribution has emerged as a promising solution for constructing secure communication networks, offering information-theoretic security guaranteed by the principles of quantum mechanics. One of the most advanced quantum key…

Quantum Physics · Physics 2024-08-30 Yizhi Huang , Zhenyu Du , Xiongfeng Ma

Quantum key distribution (QKD) is a provably secure way for two distant parties to establish a common secret key, which then can be used in a classical cryptographic scheme. Using quantum entanglement, one can reduce the necessary…

Quantum Physics · Physics 2016-08-10 E. A. Aguilar , R. Ramanathan , J. Kofler , M. Pawlowski

We propose a continuous variable quantum key distribution protocol based on discrete modulation of eight-state coherent states. We present a rigorous security proof against the collective attacks considering both of realistic lossy, noisy…

Quantum Physics · Physics 2010-06-23 A. Becir , F. A. A. El-Orany , M. R. B. Wahiddin

We describe a continuous variables coherent states quantum key distribution system working at 1550 nm, and entirely made of standard fiber optics and telecom components, such as integrated-optics modulators, couplers and fast InGaAs…

Quantum Physics · Physics 2007-05-23 Jérôme Lodewyck , Thierry Debuisschert , Rosa Tualle-Brouri , Philippe Grangier

Progress in the development of techniques for the construction of multiuser quantum communications networks is reviewed in light of the plans for an EU quantum communications infrastructure (EU QCI). Quantum key distribution networks may be…

Quantum Physics · Physics 2022-01-06 Adam M. Lewis , Petra F. Scudo

We develop the concept of quantum carrier and show that messages can be uploaded and downloaded from this carrier and while in transit, these messages are hidden from external agents. We explain in detail the working of the quantum carrier…

Quantum Physics · Physics 2012-04-12 Vahid Karimipour , Milad Marvian

Integrated photonics offers great potential for quantum communication devices in terms of complexity, robustness and scalability. Silicon photonics in particular is a leading platform for quantum photonic technologies, with further benefits…

In this paper, we consider quantum key distribution (QKD) in a quantum network with both quantum repeaters and a small number of trusted nodes. In contrast to current QKD networks with only trusted nodes and the true Quantum Internet with…

Quantum Physics · Physics 2022-12-07 Omar Amer , Walter O. Krawec , Victoria U. Manfredi , Bing Wang

In recent years, noticeable progress has been made in the development of quantum equipment, reflected through the number of successful demonstrations of Quantum Key Distribution (QKD) technology. Although they showcase the great…

Networking and Internet Architecture · Computer Science 2020-05-19 Miralem Mehic , Peppino Fazio , Stefan Rass , Oliver Maurhart , Momtchil Peev , Andreas Poppe , Jan Rozhon , Marcin Niemiec , Miroslav Voznak

Quantum key distribution (QKD) is a method that enables two remote parties to share a secure key string. Clock synchronization between two parties is a crucial step in the normal operation of QKD. Qubit-based synchronization can achieve…

Quantum Physics · Physics 2024-04-24 Ye Chen , Chunfeng Huang , Shuyi Huang , Zhenrong Zhang , Kejin Wei