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Quantum Key Distribution (QKD) offers information-theoretic security by leveraging quantum mechanics, yet the cost and complexity of dedicated hardware and fiber infrastructure have so far limited large-scale deployment and experimentation.…

Quantum Physics · Physics 2025-12-18 Blanca Lopez , Angela Diaz-Bricio , Javier Perez , Ivan Vidal , Francisco Valera

Quantum Key Distribution (QKD) is a leading technology for enabling information-theoretic secure communication, with protocols such as BB84 and its variants already deployed in practical field implementations. As QKD evolves from…

A semi-quantum key distribution (SQKD) protocol allows two users, one of whom is restricted in their quantum capabilities, to establish a shared secret key, secure against an all-powerful adversary. In this paper, we design a new SQKD…

Quantum Physics · Physics 2019-07-29 Hasan Iqbal , Walter O. Krawec

Quantum Key Distribution (QKD) is a physical layer encryption technique that enables two distant parties to exchange secure keys with information-theoretic security. In the last two decades, QKD has transitioned from laboratory research to…

Quantum Physics · Physics 2024-04-24 Chunfeng Huang , Ye Chen , Tingting Luo , Wenjie He , Xin Liu , Zhenrong Zhang , Kejin Wei

Software-defined networking (SDN) is a novel paradigm that out-sources the control of packet-forwarding switches to a set of software controllers. The most fundamental task of these controllers is the correct implementation of the…

Distributed, Parallel, and Cluster Computing · Computer Science 2014-05-21 Marco Canini , Petr Kuznetsov , Dan Levin , Stefan Schmid

Quantum Key Distribution (QKD) can provide information-theoretically secure communications and is a strong candidate for the next generation of cryptography. However, in practice, the performance of QKD is limited by "practical…

Quantum Physics · Physics 2020-04-24 Wenyuan Wang

With the advancement of quantum computing, the security of public key cryptography is under serious threat. To guarantee security in the quantum era, Quantum Key Distribution has become a competitive solution. QKD networks can be classified…

Quantum Physics · Physics 2023-12-15 Jia-Meng Yao , Qiong Li , Hao-Kun Mao , Ahmed A. Abd El-Latif

Software-Defined Network (SDN) radically changes the network architecture by decoupling the network logic from the underlying forwarding devices. This architectural change rejuvenates the network-layer granting centralized management and…

Cryptography and Security · Computer Science 2018-04-03 Arash Shaghaghi , Mohamed Ali Kaafar , Rajkumar Buyya , Sanjay Jha

Data centers are nowadays referred to as the digital world's cornerstone. Quantum key distribution (QKD) is a method that solves the problem of distributing cryptographic keys between two entities, with the security rooted in the laws of…

Quantum Physics · Physics 2023-07-26 Nitin Jain , Ulrich Hoff , Marco Gambetta , Jesper Rodenberg , Tobias Gehring

We evaluate the performance of two architectures for network-wide quantum key distribution (QKD): Relayed QKD, which relays keys over multi-link QKD paths for non-adjacent nodes, and Switched QKD, which uses optical switches to dynamically…

This letter proposes a novel hybrid key distribution architecture that jointly exploits quantum key distribution (QKD) and Kirchhoff-law-Johnson-noise (KLJN) statistical-physical key exchange. In the proposed system, an optical BB84-type…

Quantum Physics · Physics 2026-05-18 Ertugrul Basar

Nowadays, Software Defined Network (SDN) architectures and applications are revolutionizing the way wired networks are built and operate. However, little is known about the potential of this disruptive technology in wireless mobile…

Networking and Internet Architecture · Computer Science 2017-06-20 Konstantinos Poularakis , Qiaofeng Qin , Erich Nahum , Miguel Rio , Leandros Tassiulas

Virtual power plants (VPPs) are becoming a cornerstone of future grids, aggregating distributed PV, wind, storage, and flexible loads for market participation and real-time balancing. As operations move to minute-- and second--level…

Cryptography and Security · Computer Science 2025-10-21 Ziqing Zhu

Quantum communication networks (QCNs) utilize quantum mechanics for secure information transmission, but the reliance on fragile and expensive photonic quantum resources renders QCN resource optimization challenging. Unlike prior QCN works…

Networking and Internet Architecture · Computer Science 2024-04-30 Mahdi Chehimi , Christina Chaccour , Christo Kurisummoottil Thomas , Walid Saad

Hydropower facilities are often remotely monitored or controlled from a centralized remote-control room. Additionally, major component manufacturers monitor the performance of installed components. While these communications enable…

Quantum Physics · Physics 2023-10-23 Adrien Green , Jeremy Lawrence , George Siopsis , Nicholas Peters , Ali Passian

A crucial goal for quantum key distribution (QKD) is to transmit unconditionally secure keys over long distances. Previous studies show that the key rate of point-to-point QKD is limited by a secret key rate capacity bound, and higher key…

Quantum Physics · Physics 2020-11-30 Yingqiu Mao , Pei Zeng , Teng-Yun Chen

The intersection of cloud computing, blockchain technology, and the impending era of quantum computing presents a critical juncture for data security. This research addresses the escalating vulnerabilities by proposing a comprehensive…

Cryptography and Security · Computer Science 2024-07-30 D. Dhinakaran , D. Selvaraj , N. Dharini , S. Edwin Raja , C. Sakthi Lakshmi Priya

We introduce a distributed resource allocation framework for the Quantum Internet that relies on feedback-based, fully decentralized coordination to serve multiple co-existing applications. We develop quantum network control algorithms…

Quantum cryptography has attracted much attention in recent years. In most existing quantum cryptographic protocols, players usually need the full quantum power of generating, manipulating or measuring quantum states. Semiquantum…

Quantum Physics · Physics 2018-11-12 Ming-Ming Wang , Lin-Ming Gong , Lian-He Shao

The quantum convolutional neural network (QCNN) is a promising quantum machine learning (QML) model that is expected to achieve quantum advantages in classically intractable problems. However, the QCNN requires a large number of…

Quantum Physics · Physics 2024-05-07 Koki Chinzei , Quoc Hoan Tran , Kazunori Maruyama , Hirotaka Oshima , Shintaro Sato