The Experts below are selected from a list of 155088 Experts worldwide ranked by ideXlab platform
Gui Lu Long - One of the best experts on this subject based on the ideXlab platform.
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measurement device independent quantum secure Direct Communication
Science China-physics Mechanics & Astronomy, 2020Co-Authors: Zengrong Zhou, Gui Lu Long, Yubo Sheng, Penghao Niu, Liuguo Yin, Lajos HanzoAbstract:Quantum secure Direct Communication (QSDC) is a unique technique, which supports the secure transmissionof confidential information Directly through a quantum channel without the need for a secret key and forciphertext. Hence this secure Communication protocol fundamentally differs from its conventional counterparts.In this article, we report the first measurement-device-independent (MDI) QSDC protocol relying on sequencesof entangled photon pairs and single photons. Explicitly, it eliminates the security loopholes associated with themeasurement device. Additionally, this MDI technique is capable of doubling the Communication distance of itsconventional counterpart operating without using our MDI technique. We also conceive a protocol associatedwith linear optical Bell-basis measurements, where only two of the four Bell-basis states could be measured.When the number of qubits in a sequence reduces to 1, the MDI-QSDC protocol degenerates to a deterministicMDI quantum key distribution protocol.
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VTC Spring - Quantum Secure Direct Communication: Principles, Current Status, Perspectives
2017 IEEE 85th Vehicular Technology Conference (VTC Spring), 2017Co-Authors: Gui Lu LongAbstract:Quantum secure Direct Communication is one of the major branches of quantum cryptography. In quantum secure Direct Communication, secret information can be transmitted Directly through a quantum channel without the use of a private key. Quantum secure Direct Communication(QSDC) offers higher security and instantaneousness in Communication. Because it does not use private key, key management is dispensed with. Unlike quantum key distribution where key is transferred from quantum terminal to the classical terminal at the user's site, the coding operations are solely in the quantum terminal, it further provides security in the user's site. QSDC is also a powerful basic cryptographic primitive to build other quantum Communication protocols, such as quantum bidding, quantum signature and quantum dialogue and so on. Here, we briefly introduce the basic ideas of QSDC, describe the major protocols, report current status, and give a perspective.
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Experimental quantum secure Direct Communication with single photons
Light science & applications, 2016Co-Authors: Mingyong Jing, Liantuan Xiao, Suotang Jia, Guo-qing Qin, Gui Lu LongAbstract:Quantum secure Direct Communication is an important mode of quantum Communication in which secret messages are securely communicated Directly over a quantum channel. Quantum secure Direct Communication is also a basic cryptographic primitive for constructing other quantum Communication tasks, such as quantum authentication and quantum dialog. Here, we report the first experimental demonstration of quantum secure Direct Communication based on the DL04 protocol and equipped with single-photon frequency coding that explicitly demonstrated block transmission. In our experiment, we provided 16 different frequency channels, equivalent to a nibble of four-bit binary numbers for Direct information transmission. The experiment firmly demonstrated the feasibility of quantum secure Direct Communication in the presence of noise and loss.
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Experimental quantum secure Direct Communication with single photons
arXiv: Quantum Physics, 2015Co-Authors: Mingyong Jing, Liantuan Xiao, Suotang Jia, Guo-qing Qin, Gui Lu LongAbstract:Quantum Communication holds promise for absolutely security in secret message transmission. Quantum secure Direct Communication is an important mode of the quantum Communication in which secret messages are securely communicated over a quantum channel Directly. It has become one of the hot research areas in the last decade, and offers both high security and instantaneousness in Communication. It is also a basic cryptographic primitive for constructing other quantum Communication tasks such as quantum authentication, quantum dialogue and so on. Here we report the first experimental demonstration of quantum secure Direct Communication with single photons. The experiment is based on the DL04 protocol, equipped with a simple frequency coding. It has the advantage of being robust against channel noise and loss. The experiment demonstrated explicitly the block data transmission technique, which is essential for quantum secure Direct Communication. In the experiment, a block transmission of 80 single photons was demonstrated over fiber, and it provides effectively 16 different values, which is equivalent to 4 bits of Direct transmission in one block. The experiment has firmly demonstrated the feasibility of quantum secure Direct Communication in the presence of noise and loss.
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Quantum Secure Direct Communication
The Rochester Conferences on Coherence and Quantum Optics and the Quantum Information and Measurement meeting, 2013Co-Authors: Gui Lu Long, Fu-guo Deng, Chuan Wang, Chao ZhengAbstract:Quantum secure Direct Communication transmits secret messages Directly without another classical transmission. We describe its principle and working procedure through example protocols. Distinctions from QKD are pointed out, and its wide applications are given.
Tzonelih Hwang - One of the best experts on this subject based on the ideXlab platform.
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Authenticated semi-quantum Direct Communication protocols using Bell states
Quantum Information Processing, 2016Co-Authors: Yi-ping Luo, Tzonelih HwangAbstract:This study presents the first two authenticated semi-quantum Direct Communication protocols without using any classical channel. By pre-sharing a master secret key between two communicants, a sender with advanced quantum devices can transmit a secret message to a receiver who can only perform classical operations without any information leakage. The receiver is then capable of verifying the message up to the single-qubit level, i.e., a one-qubit modification of the transmitted quantum sequence can be detected with a probability close to 1. Moreover, the proposed protocols are resistant to several well-known attacks.
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authenticated semi quantum Direct Communication protocols using bell states
arXiv: Quantum Physics, 2015Co-Authors: Yi-ping Luo, Tzonelih HwangAbstract:This study presents the first two authenticated semi-quantum Direct Communication (ASQDC) protocols without using any classical channel. By pre-sharing the master secret key between two communicants, a sender with advanced quantum devices can transmit a secret message to a receiver who can only perform classical operations without any information leakage. The receiver is then capable of verifying the message up to the single qubit level, i.e., a one-qubit modification of the transmitted quantum sequence can be detected with a probability close to 1. Moreover, the proposed protocols are resistant to several well-known attacks.
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Fault tolerant authenticated quantum Direct Communication immune to collective noises
Quantum Information Processing, 2013Co-Authors: Chun-wei Yang, Tzonelih HwangAbstract:This study proposes two new coding functions for GHZ states and GHZ-like states, respectively. Based on these coding functions, two fault tolerant authenticated quantum Direct Communication (AQDC) protocols are proposed. Each of which is robust under one kind of collective noises: collective-dephasing noise and collective-rotation noise, respectively. Moreover, the proposed AQDC protocols enable a sender to send a secure as well as authenticated message to a receiver within only one step quantum transmission without using the classical channels.
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On “controlled quantum teleportation and secure Direct Communication”
2012 International Conference on Information Security and Intelligent Control, 2012Co-Authors: Shih-hung Kao, Tzonelih HwangAbstract:Based on the controlled quantum teleportation protocol, a controlled quantum secure Direct Communication scheme (CQSDC) protocol, which transmits a one-bit message via the Greenberger-Horne-Zeilinger entangled state, is presented by Gao et al. in [Chinese Phys. Vol. 14 (2005), No. 5, p. 893]. However, through this article we want to enlighten of the fact that, due to a flaw in the control function, receiver can reveal the whole secret message without help from the controller.
Chuan Wang - One of the best experts on this subject based on the ideXlab platform.
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High-dimensional measurement-device-independent quantum secure Direct Communication
Quantum Information Processing, 2020Co-Authors: Lu Liu, Jia-lei Niu, Chen-rui Fan, Xue-ting Feng, Chuan WangAbstract:Quantum secure Direct Communication is an important Communication mode of quantum Communications. Its development and application are mainly limited by the channel capacity and channel loss. Here, in this paper, a high-dimensional measurement-device-independent quantum secure Direct Communication protocol is proposed. The quantum information is encoded on the spatial mode of the photons which enlarges the coding Hilbert space and results in the high efficiency, feasibility with existing technique, and tolerance of channel noise. Based on realistic experimental parameters, the efficiency of Communications is analytically derived and numerically discussed.
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Quantum Secure Direct Communication
The Rochester Conferences on Coherence and Quantum Optics and the Quantum Information and Measurement meeting, 2013Co-Authors: Gui Lu Long, Fu-guo Deng, Chuan Wang, Chao ZhengAbstract:Quantum secure Direct Communication transmits secret messages Directly without another classical transmission. We describe its principle and working procedure through example protocols. Distinctions from QKD are pointed out, and its wide applications are given.
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QUANTUM Direct Communication BASED ON QUANTUM SEARCH ALGORITHM
International Journal of Quantum Information, 2010Co-Authors: Chuan Wang, Liang Hao, Si Yu Song, Gui Lu LongAbstract:Quantum Direct Communications, including deterministic secure quantum Communication and quantum secure Direct Communication protocol using two-qubit quantum search algorithm are proposed in this paper. Secret messages are encoded by two-qubit unitary operations and exchanged by the two Communication parties Directly. We discussed the security of the protocol under intercept-resend attack and individual attack. We found that the protocols are secure against eavesdropping attacks.
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multi step quantum secure Direct Communication using multi particle green horne zeilinger state
Optics Communications, 2005Co-Authors: Chuan Wang, Fu-guo Deng, Gui Lu LongAbstract:Abstract A multi-step quantum secure Direct Communication protocol using blocks of multi-particle maximally entangled state is proposed. In this protocol, the particles in a Green–Horne–Zeilinger state are sent from Alice to Bob in batches in several steps. It has the advantage of high efficiency and high source capacity.
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Quantum secure Direct Communication with high-dimension quantum superdense coding
Physical Review A, 2005Co-Authors: Chuan Wang, Fu-guo Deng, Xiao-shu Liu, Gui Lu LongAbstract:A protocol for quantum secure Direct Communication with quantum superdense coding is proposed. It combines the ideas of block transmission, the ping-pong quantum secure Direct Communication protocol, and quantum superdense coding. It has the advantage of being secure and of high source capacity.
Hyung Jin Yang - One of the best experts on this subject based on the ideXlab platform.
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Quantum secure Direct Communication network with hyperentanglement
Chinese Physics B, 2014Co-Authors: Chang Ho Hong, Jongin Lim, Jino Heo, Hyung Jin YangAbstract:We propose a quantum secure Direct Communication protocol with entanglement swapping and hyperentanglement. Any two users, Alice and Bob, can communicate with each other in a quantum network, even though there is no Direct quantum channel between them. The trust center, Trent, who provides a quantum channel to link them by performing entanglement swapping, cannot eavesdrop on their Communication. This protocol provides a high channel capacity because it uses hyperentanglement, which can be generated using a beta barium borate crystal.
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Quantum Direct Communication with authentication
Physical Review A, 2006Co-Authors: Hwayean Lee, Jongin Lim, Hyung Jin YangAbstract:We propose two quantum Direct Communication (QDC) protocols with user authentication. Users can identify each other by checking the correlation of Greenberger-Horne-Zeilinger (GHZ) states. Alice can Directly send a secret message to Bob without any previously shared secret using the remaining GHZ states after authentication. Our second QDC protocol can be used even though there is no quantum link between Alice and Bob. The security of the transmitted message is guaranteed by properties of entanglement of GHZ states.
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Authenticated Multiuser Quantum Direct Communication using Entanglement Swapping
arXiv: Quantum Physics, 2006Co-Authors: Chang Ho Hong, Hwayean Lee, Jiin Kim, Hyung Jin YangAbstract:We present Authenticated Multiuser Quantum Direct Communication(MQDC) protocols using entanglement swapping. Quantum Direct Communication is believed to be a safe way to send a secret message without quantum key distribution. The authentication process in our protocol allows only proper users to participate in Communication. In the Communication stage after the authentication, any two authorized users among n users can communicate each other even though there is no quantum Communication channels between them. For this protocol, we need only n quantum Communication channels between the authenticator and n users. It is similar to the present telephone system in which there are n Communication channels between telephone company and users and any two designated users can communicate each other using telephone line through the telephone company. The securities of our protocols are analysed to be the same as those of other quantum key distribution protocols.
Shou Zhang - One of the best experts on this subject based on the ideXlab platform.
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three party quantum secure Direct Communication based on ghz states
Physics Letters A, 2006Co-Authors: Xing Ri Jin, Yingqiao Zhang, Shou Zhang, Suckyoung Hong, Kyuhwang YeonAbstract:Abstract We present a three-party simultaneous quantum secure Direct Communication (QSDC) scheme by using Greenberger–Horne–Zeilinger (GHZ) states. This scheme can be Directly generalized to N-party QSDC by using n-particle GHZ states. We show that the many-party simultaneous QSDC scheme is secure not only against the intercept-and-resend attack but also against the disturbance attack.
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secure Direct Communication based on secret transmitting order of particles
Physical Review A, 2006Co-Authors: Yan Xia, Shou Zhang, Aidong Zhu, Qiubo FanAbstract:We propose the schemes of quantum secure Direct Communication based on a secret transmitting order of particles. In these protocols, the secret transmitting order of particles ensures the security of Communication, and no secret messages are leaked even if the Communication is interrupted for security. This strategy of security for Communication is also generalized to a quantum dialogue. It not only ensures the unconditional security but also improves the efficiency of Communication.
