-
The theoretical existence of photon-number-splitting attacks creates a security loophole for most quantum key distribution (QKD) demonstrations that use a highly attenuated laser source. Using ultralow-noise, high-efficiency transition-edge sensor photodetecto…
openalex
Danna Rosenberg, Jim Harrington, Patrick R. Rice, Philip A. Hiskett 等
2007-01-05
置信度 0.72
Quantum key distributionQuantum cryptographyComputer sciencePhotonTrojan horse
-
In this paper, we report on the performance of the SwissQuantum quantum key distribution (QKD) network. The network was installed in the Geneva metropolitan area and ran for more than one-and-a-half years, from the end of March 2009 to the beginning of January…
openalex
Damien Stucki, Matthieu Legré, François Buntschu, B Clausen 等
2011-12-01
置信度 0.72
Quantum key distributionPhysicsKey (lock)Reliability (semiconductor)Quantum network
-
openalex
Gong Zhang, Jing Yan Haw, Hong Cai, Feihu Xu 等
2019-08-12
置信度 0.72
Quantum key distributionPhotonicsComputer scienceKey (lock)Silicon photonics
-
We give the first composable security proof for continuous-variable quantum key distribution with coherent states against collective attacks. Crucially, in the limit of large blocks the secret key rate converges to the usual value computed from the Holevo boun…
openalex
Anthony Leverrier
2015-02-19
置信度 0.72
Quantum key distributionPostselectionQuantum entanglementComputer scienceQuantum cryptography
-
We report on entanglement-based quantum key distribution between a low-Earth-orbit satellite equipped with a space borne entangled-photon source and a ground observatory. One of the entangled photons is measured locally at the satellite, and the other one is s…
openalex
Juan Yin, Yuan Cao, Yu-Huai Li, Ji-Gang Ren 等
2017-11-13
置信度 0.72
Quantum entanglementQuantum key distributionQuantum sensorSatellitePhysics
-
A parametric down-conversion (PDC) source can be used as either a triggered single-photon source or an entangled-photon source in quantum key distribution (QKD). The triggering PDC QKD has already been studied in the literature. On the other hand, a model and …
openalex
Xiongfeng Ma, Chi‐Hang Fred Fung, Hoi‐Kwong Lo
2007-07-11
置信度 0.72
Quantum key distributionQuantum entanglementPhysicsPhotonKey (lock)
-
We demonstrate the first implementation of polarization encoding measurement-device-independent quantum key distribution (MDI-QKD), which is immune to all detector side-channel attacks. Active phase randomization of each individual pulse is implemented to prot…
openalex
Zhiyuan Tang, Zhongfa Liao, Feihu Xu, Bing Qi 等
2014-05-14
置信度 0.72
Quantum key distributionComputer scienceDetectorEncoding (memory)Key (lock)
-
A working free-space quantum key distribution system has been developed and tested over an outdoor optical path of $\ensuremath{\sim}1\mathrm{km}$ at Los Alamos National Laboratory under nighttime conditions. Results show that free-space quantum key distributi…
openalex
W. T. Buttler, Richard Hughes, Paul G. Kwiat, S. K. Lamoreaux 等
1998-10-12
置信度 0.72
Quantum key distributionKey (lock)Free spaceComputer scienceQuantum cryptography
-
We present a continuous-variable quantum key distribution protocol combining a discrete modulation and reverse reconciliation. This protocol is proven unconditionally secure and allows the distribution of secret keys over long distances, thanks to a reverse re…
openalex
Anthony Leverrier, Philippe Grangier
2009-05-06
置信度 0.72
Quantum key distributionComputer scienceContinuous variableModulation (music)Protocol (science)
-
We prove the security of a quantum key distribution scheme based on transmission of squeezed quantum states of a harmonic oscillator. Our proof employs quantum error-correcting codes that encode a finite-dimensional quantum system in the infinite-dimensional H…
openalex
Daniel Gottesman, John Preskill
2001-01-18
置信度 0.72
Quantum key distributionQuantum channelQuantum error correctionAmplitude damping channelQuantum mechanics
-
openalex
Toshihiko Sasaki, Y. Yamamoto, Masato Koashi
2014-05-20
置信度 0.72
Quantum key distributionComputer scienceCommunication sourceKey (lock)Quantum cryptography
-
We present an approach to the unconditional security of quantum key distribution protocols based on a complementarity argument. The approach is applicable to, but not limited to, every case that has been treated via the argument by Shor and Preskill based on e…
openalex
Masato Koashi
2009-04-30
置信度 0.72
Quantum key distributionPhysicsComplementarity (molecular biology)Decoupling (probability)Quantum entanglement
-
The security of conventional cryptography systems is threatened in the forthcoming era of quantum computers. Quantum key distribution (QKD) features fundamentally proven security and offers a promising option for quantum-proof cryptography solution. Although p…
openalex
Nurul T. Islam, Charles Ci Wen Lim, Clinton Cahall, Jungsang Kim 等
2017-11-03
置信度 0.72
Quantum key distributionComputer scienceQuantum cryptographyCryptographyQubit
-
Modern optical networking techniques have the potential to greatly extend the applicability of quantum communications by moving beyond simple point-to-point optical links and by leveraging existing fibre infrastructures. We experimentally demonstrate many of t…
openalex
T.E. Chapuran, P. Toliver, Nicholas A. Peters, J. Jackel 等
2009-10-07
置信度 0.72
Quantum key distributionPhysicsScalabilityQuantum networkQuantum
-
Cryptographic key exchange protocols traditionally rely on computational conjectures such as the hardness of prime factorisation to provide security against eavesdropping attacks. Remarkably, quantum key distribution protocols like the one proposed by Bennett …
openalex
D. P. Nadlinger, P. Drmota, B. C. Nichol, G. Araneda 等
2022-07-27
置信度 0.72
Quantum key distributionQuantum cryptographyComputer scienceQuantum entanglementTheoretical computer science
-
Quantum cryptography is the art and science of exploiting quantum mechanical effects in order to perform cryptographic tasks. While the most well-known example of this discipline is quantum key distribution (QKD), there exist many other applications such as qu…
openalex
Anne Broadbent, Christian Schaffner
2015-12-21
置信度 0.72
Quantum cryptographyQuantum networkQuantum key distributionQuantum algorithmQuantum computer
-
We demonstrate the decoy-state quantum key distribution (QKD) with one-way quantum communication in polarization space over 102 km. Further, we simplify the experimental setup and use only one detector to implement the one-way decoy-state QKD over 75 km, with …
openalex
Cheng-Zhi Peng, Jun Zhang, Dong Yang, Wei-Bo Gao 等
2007-01-05
置信度 0.72
Quantum key distributionComputer scienceQuantum cryptographyPolarization mode dispersionDetector
-
Abstract Quantum key distribution (QKD) using weak coherent states and homodyne detection is a promising candidate for practical quantum‐cryptographic implementations due to its compatibility with existing telecom equipment and high detection efficiencies. How…
openalex
Fabian Laudenbach, Christoph Pacher, Chi‐Hang Fred Fung, Andreas Poppe 等
2018-06-26
置信度 0.72
Quantum key distributionComputer scienceKey (lock)ImplementationHomodyne detection
-
openalex
Mariella Minder, Mirko Pittaluga, George L. Roberts, Marco Lucamarini 等
2019-03-04
置信度 0.72
Quantum key distributionKey (lock)Transmission (telecommunications)Computer scienceQuantum channel
-
Abstract Device-independent quantum key distribution (DIQKD) enables the generation of secret keys over an untrusted channel using uncharacterized and potentially untrusted devices 1–9 . The proper and secure functioning of the devices can be certified by a st…
openalex
Wei Zhang, Tim van Leent, Kai Redeker, Robert Garthoff 等
2022-07-27
置信度 0.72
Quantum key distributionKey (lock)Computer scienceQuantumComputer security
-
Characterizing the physical channel and calibrating the cryptosystem hardware are prerequisites for establishing a quantum channel for quantum key distribution (QKD). Moreover, an inappropriately implemented calibration routine can open a fatal security loopho…
openalex
Nitin Jain, Christoffer Wittmann, Lars Lydersen, Carlos Wiechers 等
2011-09-09
置信度 0.72
Quantum key distributionCryptosystemComputer scienceKey (lock)Quantum cryptography
-
openalex
H. Inamori, N. Lütkenhaus, D. Mayers
2007-01-16
置信度 0.72
BB84Quantum key distributionProtocol (science)Computer scienceKey (lock)
-
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 of miniaturization…
openalex
Philip Sibson, Jake Kennard, Stasja Stanisic, Chris Erven 等
2017-01-23
置信度 0.72
PhotonicsMicroelectronicsQuantum key distributionSilicon photonicsComputer science
-
We present a complete protocol for BB84 quantum key distribution for a realistic setting (noise, loss, multi-photon signals of the source) that covers many of todays experimental implementations. The security of this protocol is shown against an eavesdropper h…
openalex
Inamori, H, Lütkenhaus, N, Mayers, D
2001-07-03
置信度 0.72
BB84Quantum key distributionComputer scienceComposabilityCommunication source
-
We provide security bounds against coherent attacks for two families of quantum key distribution protocols that use $d$-dimensional quantum systems. In the asymptotic regime, both the secret key rate for fixed noise and the robustness to noise increase with $d…
openalex
Lana Sheridan, Valerio Scarani
2010-09-07
置信度 0.72
Quantum key distributionRobustness (evolution)Key (lock)Computer scienceQuantum cryptography
-
We propose a method for extracting an errorless secret key in a continuous-variable quantum key distribution protocol, which is based on Gaussian modulation of coherent states and homodyne detection. The crucial feature is an eight-dimensional reconciliation m…
openalex
Anthony Leverrier, Romain Alléaume, Joseph J. Boutros, Gilles Zémor 等
2008-04-30
置信度 0.72
Quantum key distributionContinuous variableGaussianKey (lock)Computer science
-
We present and demonstrate a new protocol for practical quantum cryptography, tailored for an implementation with weak coherent pulses to obtain a high key generation rate. The key is obtained by a simple time-of-arrival measurement on the dataline; the presen…
openalex
Damien Stucki, Nicolas Brunner, Nicolas Gisin, Valerio Scarani 等
2005-11-01
置信度 0.72
Quantum key distributionInterferometryInterference (communication)VisibilityQuantum cryptography
-
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 transmittance R(η). Recentl…
openalex
Pei Zeng, Hongyi Zhou, Weijie Wu, Xiongfeng Ma
2022-07-07
置信度 0.72
Quantum key distributionKey (lock)Computer sciencePairingAstronomical interferometer
-
We present a two-way protocol for the quantum key distribution with practical faint laser pulses. It is secure when the faint laser pulses contain no more than two photons. The key distribution task is completed in two transmissions. Bob first sends the laser …
openalex
Fu‐Guo Deng, Gui Lu Long
2004-07-20
置信度 0.72
Quantum key distributionEavesdroppingPhysicsQuantum cryptographyAlice and Bob
-
We describe a quantum key distribution protocol based on pairs of entangled qubits that generates a secure key between two partners in an environment of unknown and slowly varying reference frame. A direction of particle delivery is required, but the phases be…
openalex
Anthony Laing, Valerio Scarani, John Rarity, Jeremy L. O’Brien
2010-07-07
置信度 0.72
QutritQuantum key distributionBB84Computer scienceQubit
-
Quantum key distribution (QKD) can, in principle, provide unconditional security based on the fundamental laws of physics. Unfortunately, a practical QKD system may contain overlooked imperfections and may thus violate some of the assumptions in the security p…
openalex
Feihu Xu, Bing Qi, Hoi‐Kwong Lo
2010-11-11
置信度 0.72
Quantum key distributionBB84PhysicsCommunication sourceKey (lock)
-
A systematic analysis of the advantages and challenges associated with the satellite-based implementation of the high dimensional extended B92 (HD-Ext-B92) and high-dimensional BB84 (HD-BB84) protocol is analyzed. The method used earlier for obtaining the key …
arxiv
Arindam Dutta, Muskan, Subhashish Banerjee, Anirban Pathak
2023-11-01T05:42:27Z
置信度 0.78
quant-ph
-
In this comment, we present a frequency-shift attack on "quantum key distribution with classical Bob". This practical attack should also be considered in other two-way quantum key distribution protocols.
arxiv
Yong-gang Tan, Hua Lu, Qing-yu Cai
2009-03-20T03:48:38Z
置信度 0.78
quant-ph
-
We present two new schemes for quantum key distribution (QKD) that neither require entanglement nor an ideal single-photon source, making them implementable with commercially available single-photon sources. These protocols are shown to be secure against multi…
arxiv
Arindam Dutta, Anirban Pathak
2022-12-26T11:14:39Z
置信度 0.78
quant-phcs.CR
-
In this work we present a security analysis for quantum key distribution, establishing a rigorous tradeoff between various protocol and security parameters for a class of entanglement-based and prepare-and-measure protocols. The goal of this paper is twofold: …
arxiv
Marco Tomamichel, Anthony Leverrier
2015-06-28T22:06:44Z
置信度 0.78
quant-ph
-
In the description of quantum key distribution systems, much attention is paid to the operation of quantum cryptography protocols. The main problem is the insufficient study of the synchronization process of quantum key distribution systems. This paper contain…
arxiv
Anton Pljonkin, Konstantin Rumyantsev, Pradeep Kumar Singh
2018-04-19T05:49:16Z
置信度 0.78
quant-phcs.CR
-
In recent years, quantum key distribution (QKD) has evolved from a scientific research field to a commercially available security solution, supported by mathematically formulated security proofs. However, since the knowledge required for a full understanding o…
arxiv
Jerome Wiesemann, Jan Krause, Devashish Tupkary, Norbert Lütkenhaus 等
2024-05-26T14:13:33Z
置信度 0.78
quant-ph
-
In this work, we apply the advantage distillation method to improve the performance of a practical twin-field quantum key distribution system under collective attack. Compared with the previous analysis result given by Maeda, Sasaki and Koashi [Nature Communic…
arxiv
Hong-Wei Li, Rui-Qiang Wang, Chun-Mei Zhang, Qing-Yu Cai
2022-02-21T09:12:14Z
置信度 0.78
quant-ph
-
Practical implementations of quantum key distribution (QKD) have been shown to be subject to various detector side-channel attacks that compromise the promised unconditional security. Most notable is a general class of attacks adopting the use of faked-state p…
arxiv
Salem F. Hegazy, Salah S. A. Obayya, Bahaa E. A. Saleh
2022-10-03T19:44:35Z
置信度 0.78
quant-ph
-
The problem of implementation security in quantum key distribution (QKD) refers to the difficulty of meeting the requirements of mathematical security proofs in real-life QKD systems. Here, we provide a succint review on this topic, focusing on discrete variab…
arxiv
Víctor Zapatero, Álvaro Navarrete, Marcos Curty
2023-10-31T11:36:58Z
置信度 0.78
quant-ph
-
Quantum key distribution, which allows two distant parties to share an unconditionally secure cryptographic key, promises to play an important role in the future of communication. For this reason such technique has attracted many theoretical and experimental e…
arxiv
Francesco Massa, Preeti Yadav, Amir Moqanaki, Walter O. Krawec 等
2019-08-05T18:00:12Z
置信度 0.78
quant-ph
-
We critically analyse the role of single photon subtraction (SPS) and displacement in improving the performance of continuous variable measurement device independent quantum key distribution (CV-MDI-QKD). We consider CV-MDI-QKD with resource states generated b…
arxiv
Chandan Kumar, Sarbani Chatterjee, Arvind
2024-06-06T17:09:08Z
置信度 0.78
quant-ph
-
We proposed a new scheme for quantum key distribution based on entanglement swapping. By this protocol \QTR{em}{Alice} can securely share a random quantum key with \QTR{em}{Bob}, without transporting any particle.
arxiv
Chong Li, He-Shan Song, Ling Zhou, Chun-Feng Wu
2003-02-27T08:52:13Z
置信度 0.78
quant-ph
-
We propose a new Quantum Key Distribution method in which Alice sends pairs of qubits to Bob, each in one of four possible states. Bob uses one qubit to generate a secure key and the other to generate an auxiliary key. For each pair he randomly decides which q…
arxiv
Mohd Asad Siddiqui, Tabish Qureshi
2013-01-18T03:08:40Z
置信度 0.78
quant-ph
-
Non-Gaussian operations, in particular, photon subtraction (PS), have been shown to enhance the performance of various quantum information processing tasks including continuous variable measurement device independent quantum key distribution (CV-MDI-QKD). This…
arxiv
Chandan Kumar, Sarbani Chatterjee, Arvind
2024-06-06T17:21:47Z
置信度 0.78
quant-ph
-
Here we present a new protocol for controlled quantum key agreement and another protocol for key agreement with a specific focus on the security analysis. Specifically, detailed security proof is provided against impersonated fraudulent attack and collective a…
arxiv
Arindam Dutta, Anirban Pathak
2023-08-10T09:51:23Z
置信度 0.78
quant-ph
-
Quantum key distribution (QKD) has matured in recent years from laboratory proof-of-principle demonstrations to commercially available systems. One of the major bottlenecks is the limited communication distance in fiber networks due to the exponential signal d…
arxiv
Mostafa Abasifard, Chanaprom Cholsuk, Roberto G. Pousa, Anand Kumar 等
2023-03-03T17:49:31Z
置信度 0.78
quant-phcond-mat.mtrl-sciphysics.app-phphysics.opticsphysics.space-ph
-
Discrete-modulated continuous-variable quantum key distribution with homodyne detection is widely recognized for its ease of implementation, efficiency with respect to error correction, and its compatibility with modern optical communication devices. However, …
arxiv
Wen-Bo Liu, Chen-Long Li, Yuan-Mei Xie, Chen-Xun Weng 等
2021-04-22T16:10:35Z
置信度 0.78
quant-ph
-
We discuss a quantum key distribution scheme in which small phase and amplitude modulations of quantum limited, CW light beams carry the key information. We identify universal constraints on the level of shared information between the intended receiver (Bob) a…
arxiv
T. C. Ralph
2001-09-19T22:49:38Z
置信度 0.78
quant-ph
-
The unconditional security of continuous-variable quantum key distribution is established for all schemes based on the estimation of the channel loss and excess noise. It is proved that, in the limit of large keys, Gaussian attacks are asymptotically optimal a…
arxiv
Anthony Leverrier, Evgueni Karpov, Philippe Grangier, Nicolas J. Cerf
2008-09-12T17:14:49Z
置信度 0.78
quant-ph
-
Most quantum key distribution (QKD) protocols can be classified as either a discrete-variable (DV) protocol or continuous-variable (CV) protocol, based on how classical information is being encoded. We propose a protocol that combines the best of both worlds -…
arxiv
Ignatius William Primaatmaja, Cassey Crystania Liang, Gong Zhang, Jing Yan Haw 等
2021-09-01T17:12:28Z
置信度 0.78
quant-ph
-
The Entropy Accumulation Theorem (EAT) was introduced to significantly improve the finite-size rates for device-independent quantum information processing tasks such as device-independent quantum key distribution (QKD). A natural question would be whether it a…
arxiv
Ian George, Jie Lin, Thomas van Himbeeck, Kun Fang 等
2022-03-13T03:00:41Z
置信度 0.78
quant-ph
-
A quantum internet aims at harnessing networked quantum technologies, namely by distributing bipartite entanglement between distant nodes. However, multipartite entanglement between the nodes may empower the quantum internet for additional or better applicatio…
arxiv
Luís Bugalho, Bruno C. Coutinho, Francisco A. Monteiro, Yasser Omar
2021-03-26T22:48:05Z
置信度 0.78
quant-ph
-
Device-independent quantum key distribution (DI-QKD) is often seen as the ultimate key exchange protocol in terms of security, as it can be performed securely with uncharacterised black-box devices. The advent of DI-QKD closes several loopholes and side-channe…
arxiv
Ignatius W. Primaatmaja, Koon Tong Goh, Ernest Y. -Z. Tan, John T. -F. Khoo 等
2022-06-10T09:20:20Z
置信度 0.78
quant-ph
-
Security proof methods for quantum key distribution, QKD, that are based on the numerical key rate calculation problem, are powerful in principle. However, the practicality of the methods are limited by computational resources and the efficiency and accuracy o…
arxiv
Hao Hu, Jiyoung Im, Jie Lin, Norbert Lütkenhaus 等
2021-04-08T15:49:37Z
置信度 0.78
quant-phmath.OC
-
Secure quantum conferencing refers to a protocol where a number of trusted users generate exactly the same secret key to confidentially broadcast private messages. By a modification of the techniques first introduced in [Pirandola, arXiv:1601.00966], we derive…
arxiv
Stefano Pirandola
2019-12-24T13:46:27Z
置信度 0.78
quant-phmath-ph
-
We establish an analytical lower bound on the asymptotic secret key rate of continuous-variable quantum key distribution with an arbitrary modulation of coherent states. Previously, such bounds were only available for protocols with a Gaussian modulation, and …
arxiv
Aurélie Denys, Peter Brown, Anthony Leverrier
2021-03-25T16:05:22Z
置信度 0.78
quant-ph
-
Discrete-variable (DV) quantum key distribution (QKD) based on single-photon detectors and sources have been successfully deployed for long-range secure key distribution. On the other hand, continuous-variable (CV) quantum key distribution (QKD) based on coher…
arxiv
Sebastian P. Kish, Patrick J. Gleeson, Angus Walsh, Ping Koy Lam 等
2022-06-28T03:19:32Z
置信度 0.78
quant-ph
-
Attacks that control single-photon detectors in quantum key distribution using tailored bright illumination are capable of eavesdropping the secret key. Here we report an automated testbench that checks the detector's vulnerabilities against these attacks. We …
arxiv
Polina Acheva, Konstantin Zaitsev, Vladimir Zavodilenko, Anton Losev 等
2023-05-29T21:08:08Z
置信度 0.78
physics.ins-detquant-ph
-
Top-performance sources of photonic entanglement are an indispensable resource for many applications in quantum communication, most notably quantum key distribution. However, up to now, no source has been shown to simultaneously exhibit the high pair-creation …
arxiv
Sebastian Philipp Neumann, Mirela Selimovic, Martin Bohmann, Rupert Ursin
2021-07-16T08:15:53Z
置信度 0.78
quant-ph
-
As quantum key distribution networks grow in size and complexity, resource assignment has become increasingly important. In passive optical networks without wavelength conversion, we need to assign a full route between origin and destination with the same wave…
arxiv
Lidia Ruiz, Juan Carlos Garcia-Escartin
2024-07-26T18:07:00Z
置信度 0.78
quant-ph
-
We propose and experimentally demonstrate a scheme to render the detection apparatus of a Quantum Key Distribution system immune to the main classes of hacking attacks in which the eavesdropper explores the back-door opened by the single-photon detectors. The …
arxiv
Thiago Ferreira da Silva, Gustavo C. do Amaral, Guilherme B. Xavier, Guilherme P. Temporão 等
2014-10-02T20:15:26Z
置信度 0.78
quant-ph
-
Quantum Key Distribution (QKD) enables secret key exchange between two remote parties with information-theoretic security rooted in the laws of quantum physics. Encoding key information in continuous variables (CV), such as the values of quadrature components …
arxiv
Yoann Piétri, Matteo Schiavon, Valentina Marulanda Acosta, Baptiste Gouraud 等
2024-04-29T12:15:49Z
置信度 0.78
quant-ph
-
We demonstrate a practical countermeasure against a well-known class of attacks on quantum key distribution (QKD) systems that exploit detection efficiency mismatch, where the receiver's detectors do not exhibit identical responses to incoming photons across a…
arxiv
Ben J. Taylor, Peter R. Smith, James F. Dynes, Robert I. Woodward 等
2026-05-21T14:53:01Z
置信度 0.78
quant-ph
-
We provide a quantum key distribution protocol based on the correlations of the Greenburger-Horne-Zeilinger(GHZ) state. No classical communication is needed in the process of the establishment of the key. Our protocol is useful when an unjammable classical com…
arxiv
Xiaoyu Li
2002-09-06T09:26:15Z
置信度 0.78
quant-ph
-
Inserting nonreciprocal devices at the doorways of Alice and Bob is a widely recognized countermeasure against quantum hacking attacks in quantum key distribution (QKD) systems. However, traditional integrated nonreciprocal devices, which are typically based o…
arxiv
Qiang Liu, Yinming Huang, Tingting Luo, Chunfeng Huang 等
2023-06-11T02:47:42Z
置信度 0.78
quant-ph
-
Information-theoretical security of quantum key distribution (QKD) has been convincingly proven in recent years and remarkable experiments have shown the potential of QKD for real world applications. Due to its unique capability of combining high key rate and …
arxiv
Marco Lucamarini, James F. Dynes, Bernd Fröhlich, Zhiliang Yuan 等
2015-03-25T11:17:29Z
置信度 0.78
quant-ph
-
We present a scheme to generate three particle hyper-entanglement utilizing polarization and orbital angular momentum (OAM) of a photon. We show that the generated state can be used to teleport a two-qubit state described by the polarization and the OAM. The p…
arxiv
P. Chithrabhanu, A. Aadhi, Salla Gangi Reddy, Shashi Prabhakar 等
2013-11-28T13:52:07Z
置信度 0.78
quant-phcs.CR
-
In a basic related-key attack against a block cipher, the adversary has access to encryptions under keys that differ from the target key by bit-flips. In this short note we show that for a quantum adversary such attacks are quite powerful: if the secret key is…
arxiv
Martin Roetteler, Rainer Steinwandt
2013-06-10T19:54:39Z
置信度 0.78
quant-phcs.CRcs.IT
-
Quantum networks are important for quantum communication, enabling tasks such as quantum teleportation, quantum key distribution, quantum sensing, and quantum error correction, often utilizing graph states, a specific class of multipartite entangled states tha…
arxiv
Aniruddha Sen, Kenneth Goodenough, Don Towsley
2023-08-25T23:03:25Z
置信度 0.78
quant-phcs.DScs.NI
-
We review a communication protocol recently proposed by us that makes use of a two-way quantum channel. We provide a characterization of such a protocol from a practical perspective, and consider the most relevant eavesdropping strategies against it. This allo…
arxiv
Marco Lucamarini, Stefano Mancini
2010-04-01T15:34:39Z
置信度 0.78
quant-ph
-
We show that a family of quantum authentication protocols introduced in [Barnum et al., FOCS 2002] can be used to construct a secure quantum channel and additionally recycle all of the secret key if the message is successfully authenticated, and recycle part o…
arxiv
Christopher Portmann
2016-10-11T16:56:55Z
置信度 0.78
quant-phcs.CRcs.IT
-
Uniquely among the sciences, quantum cryptography has driven both foundational research as well as practical real-life applications. We review the progress of quantum cryptography in the last decade, covering quantum key distribution and other applications.
arxiv
Akshata Shenoy H., Anirban Pathak, R. Srikanth
2018-02-15T13:08:43Z
置信度 0.78
quant-phphysics.app-ph
-
Imperfect bit-and-basis encoders compromise the security of quantum key distribution (QKD) systems via modulation flaws, side channels and inter-pulse correlations, which invalidate standard security proofs. Existing results addressing such imperfections suffe…
arxiv
Guillermo Currás-Lorenzo, Margarida Pereira, Go Kato, Marcos Curty 等
2023-05-10T07:02:32Z
置信度 0.78
quant-ph
-
Distributed quantum sensing enables the estimation of multiple parameters encoded in spatially separated probes. While traditional quantum sensing is often focused on estimating a single parameter with maximum precision, distributed quantum sensing seeks to es…
arxiv
Luís Bugalho, Majid Hassani, Yasser Omar, Damian Markham
2024-07-31T15:46:50Z
置信度 0.78
quant-ph
-
Quantum key distribution (QKD) has been developed within the last decade that is provably secure against arbitrary computing power, and even against quantum computer attacks. Now there is a strong need of research to exploit this technology in the existing com…
arxiv
Muhammad Mubashir Khan, Salahuddin Hyder, Mahmood K Pathan, Kashif H Sheikh
2009-01-29T10:48:28Z
置信度 0.78
cs.CR
-
We address the question of quantifying eavesdropper's information gain in an individual attack on systems of quantum key distribution. It is connected with the concept of conclusive eavesdropping introduced by Brandt. Using the BB84 protocol, we examine the pr…
arxiv
Alexey E. Rastegin
2016-03-27T13:55:42Z
置信度 0.78
quant-ph
-
Discrete-Modulated (DM) Continuous-Variable Quantum Key Distribution (CV-QKD) protocols are promising candidates for commercial implementations of quantum communication networks due to their experimental simplicity. While tight security analyses in the asympto…
arxiv
Florian Kanitschar, Ian George, Jie Lin, Twesh Upadhyaya 等
2023-01-20T17:16:21Z
置信度 0.78
quant-ph
-
Quantum key distribution is one of the most fundamental cryptographic protocols. Quantum walks are important primitives for computing. In this paper we take advantage of the properties of quantum walks to design new secure quantum key distribution schemes. In …
arxiv
Chrysoula Vlachou, Walter Krawec, Paulo Mateus, Nikola Paunkovic 等
2017-10-22T17:16:44Z
置信度 0.78
quant-ph
-
Quantum money is the task of verifying the validity of banknotes while ensuring that they cannot be counterfeited. Public-key quantum money allows anyone to perform verification, while the private-key setting restricts the ability to verify to banks, as in Wie…
arxiv
Peter Yuen
2024-07-08T23:53:07Z
置信度 0.78
quant-ph
-
The Diffie-Hellman key exchange plays a crucial role in conventional cryptography, as it allows two legitimate users to establish a common, usually ephemeral, secret key. Its security relies on the discrete-logarithm problem, which is considered to be a mathem…
arxiv
Georgios M. Nikolopoulos
2025-01-16T14:42:11Z
置信度 0.78
quant-phcs.CRphysics.optics
-
Quantum Key Distribution (QKD) is a technology that ensures secure communication by leveraging the principles of quantum mechanics, such as the no-cloning theorem and quantum uncertainty. This chapter provides an overview of this quantum technology's maturity …
arxiv
Sebastian Kish, Josef Pieprzyk, Seyit Camtepe
2025-07-31T02:20:02Z
置信度 0.78
quant-phcs.CR
-
We propose and implement a protocol for a scalable, cost-effective, information-theoretically secure key distribution and management system. The system, called Distributed Symmetric Key Establishment (DSKE), relies on pre-shared random numbers between DSKE cli…
arxiv
Hoi-Kwong Lo, Mattia Montagna, Manfred von Willich
2022-05-02T01:46:11Z
置信度 0.78
quant-phcs.CR
-
Quantum key distribution (QKD) promises secure key agreement by using quantum mechanical systems. We argue that QKD will be an important part of future cryptographic infrastructures. It can provide long-term confidentiality for encrypted information without re…
arxiv
Douglas Stebila, Michele Mosca, Norbert Lütkenhaus
2009-02-17T05:31:36Z
置信度 0.78
quant-ph
-
Quantum computing poses significant threats to conventional cryptographic techniques such as RSA and AES, motivating the need for quantum secure communication methods. Quantum Key Distribution (QKD) offers information theoretic security based on fundamental qu…
arxiv
Mahendra Rasay, Emmanuel D. Sebastian, Subhash Prasad Sah, David Chinamerem Akah 等
2026-03-17T15:48:26Z
置信度 0.78
quant-ph
-
In this paper we propose a technique for distributing entanglement in architectures in which interactions between pairs of qubits are constrained to a fixed network $G$. This allows for two-qubit operations to be performed between qubits which are remote from …
arxiv
Niel de Beaudrap, Steven Herbert
2019-10-08T10:15:40Z
置信度 0.78
quant-ph
-
There is no doubt that quantum key distribution is an excellent result as a science. However, this paper presents a view on quantum key distribution (QKD) wherein QKD may have a difficulty to provide a sufficient security and good communication performance in …
arxiv
Osamu Hirota
2014-09-21T14:47:39Z
置信度 0.78
quant-ph
-
We give new arguments in support of \emph{signed quantum key establishment}, where quantum cryptography is used in a public-key infrastructure that provides the required authentication. We also analyze more thoroughly than previous works the benefits that quan…
arxiv
Lawrence M. Ioannou, Michele Mosca
2011-09-15T01:20:54Z
置信度 0.78
quant-ph
-
Quantum information and quantum foundations are becoming popular topics for advanced undergraduate courses. Many of the fundamental concepts and applications in these two fields, such as delayed choice experiments and quantum encryption, are comprehensible to …
arxiv
Tarek A. Elsayed
2019-07-07T10:00:01Z
置信度 0.78
quant-ph
-
Quantum data locking is a protocol that allows for a small secret key to (un)lock an exponentially larger amount of information, hence yielding the strongest violation of the classical one-time pad encryption in the quantum setting. This violation mirrors a la…
arxiv
Cosmo Lupo, Seth Lloyd
2014-06-17T16:39:26Z
置信度 0.78
quant-ph
-
The discrete time quantum walk which is a quantum counterpart of random walk plays important roles in the theory of quantum information theory. In the present paper, we focus on discrete time quantum walks viewed as quantization of random walks on the path. We…
arxiv
Yusuke Ide, Norio Konno, Etsuo Segawa
2011-12-17T08:58:12Z
置信度 0.78
quant-phmath-phmath.PRmath.SP
-
We have designed and realized a prototype that implements a continuous-variable quantum key distribution protocol based on coherent states and reverse reconciliation. The system uses time and polarization multiplexing for optimal transmission and detection of …
arxiv
Simon Fossier, Eleni Diamanti, Thierry Debuisschert, André Villing 等
2008-12-17T13:32:25Z
置信度 0.78
quant-ph
-
Here, we demonstrate that a practical Continuous Variables Quantum Key Distribution (CVQKD) protocol relying on the Gaussian modulation of coherent states features secret key rates that cannot be achieved with standard qubit Discrete Variables (DV) QKD protoco…
arxiv
Paul Jouguet, David Elkouss, Sébastien Kunz-Jacques
2014-06-04T14:16:25Z
置信度 0.78
quant-ph
-
This article provides the unconditional security of a semi quantum key distribution (SQKD) protocol based on 3-dimensional quantum states. By deriving a lower bound for the key rate, in the asymptotic scenario, as a function of the quantum channel's noise, we …
arxiv
Hasnaa Hajji, Morad El Baz
2021-01-07T15:16:29Z
置信度 0.78
quant-ph
-
A well-known feature of quantum mechanics is the secure exchange of secret bit strings which can then be used as keys to encrypt messages transmitted over any classical communication channel. It is demonstrated that this quantum key distribution allows a much …
arxiv
Gerd Niestegge
2016-11-08T13:35:58Z
置信度 0.78
quant-phmath-ph
-
The efficient preparation of input distributions is an important problem in obtaining quantum advantage in a wide range of domains. We propose a novel quantum algorithm for the efficient preparation of arbitrary normal distributions in quantum registers. To th…
arxiv
Arthur G. Rattew, Yue Sun, Pierre Minssen, Marco Pistoia
2020-09-14T17:36:12Z
置信度 0.78
quant-ph
-
Quantum key distribution promises information-theoretically secure communication, with data post-processing playing a vital role in extracting secure keys from raw data. While hardware advancements have significantly improved practical implementations, optimiz…
arxiv
Zhenyu Du, Guoding Liu, Xingjian Zhang, Xiongfeng Ma
2024-04-23T04:27:03Z
置信度 0.78
quant-ph
-
Establishing entanglement between distant parties is one of the most important problems of quantum technology, since long-distance entanglement is an essential part of such fundamental tasks as quantum cryptography or quantum teleportation. In this lecture we …
arxiv
Alexander Streltsov, Hermann Kampermann, Dagmar Bruß
2016-10-17T12:38:07Z
置信度 0.78
quant-ph
-
Quantum key distribution (QKD) allows for secure communications safe against attacks by quantum computers. QKD protocols are performed by sending a sizeable, but finite, number of quantum signals between the distant parties involved. Many QKD experiments howev…
arxiv
Darius Bunandar, Luke C. G. Govia, Hari Krovi, Dirk R. Englund
2019-11-18T19:00:02Z
置信度 0.78
quant-ph
-
The "semiquantum" key distribution protocol introduced by Zou et al. [Phys. Rev. A Vol.79, 052312 (2009)] is examined. The protocol while using two-way quantum communication requires only Bob to be fully quantum. We derive a trade-off inequality between inform…
arxiv
Takayuki Miyadera
2011-05-12T15:04:58Z
置信度 0.78
quant-ph