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Device-independent quantum information is attracting significant attention, particularly for its applications in information security. This interest arises because the security of device-independent protocols relies solely on the observed…

Quantum Physics · Physics 2026-05-29 Matteo Padovan , Alessandro Rezzi , Lorenzo Coccia

Device-Independent Quantum Key Distribution (DIQKD) is a formalism that supersedes traditional quantum key distribution, as its security does not rely on any detailed modelling of the internal working of the devices. This strong form of…

Quantum Physics · Physics 2014-01-10 Stefano Pironio , Lluis Masanes , Anthony Leverrier , Antonio Acin

In practical quantum communication, imperfect devices may introduce side channels, creating opportunities for eavesdroppers. Especially on the source side, the side channels created by active modulation may compromise the security of the…

Quantum Physics · Physics 2025-06-30 Jia-Wei Ying , Qi Zhang , Shi-Pu Gu , Xing-Fu Wang , Lan Zhou , Yu-Bo Sheng

Current quantum secure direct communication (QSDC) protocols guarantee communication security by estimating the error rates of photons in the X and Z bases. This take the reference frame calibration between communicating parties as a…

Quantum secure direct communication (QSDC) is an important quantum communication branch, which realizes the secure information transmission directly without encryption and decryption processes. Recently, two table-top experiments have…

Quantum Physics · Physics 2017-10-24 Feng Zhu , Wei Zhang , Yubo Sheng , Yidong Huang

Quantum communication provides an absolute security advantage, and it has been widely developed over the past 30 years. As an important branch of quantum communication, quantum secure direct communication (QSDC) promotes high security and…

Quantum Physics · Physics 2017-06-07 Wei Zhang , Dong-Sheng Ding , Yu-Bo Sheng , Lan Zhou , Bao-Sen Shi , Guang-Can Guo

Recently in 2018, Niu et al. proposed a measurement-device-independent quantum secure direct communication protocol using Einstein-Podolsky-Rosen pairs and generalized it to a quantum dialogue protocol (Niu et al., Science bulletin 63.20,…

Quantum Physics · Physics 2021-02-02 Nayana Das , Goutam Paul

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 Physics · Physics 2015-09-08 Jianyong Hu , Bo Yu , Mingyong Jing , Liantuan Xiao , Suotang Jia , Guoqing Qin , Guilu Long

Quantum secure direct communication (QSDC) uses the quantum channel to transmit information reliably and securely. In order to eliminate the security loopholes resulting from practical detectors, the measurement-device-independent (MDI)…

Quantum Physics · Physics 2022-12-13 Xiang-Jie Li , Dong Pan , Gui-Lu Long , Lajos Hanzo

Device-independent quantum key distribution provides security even when the equipment used to communicate over the quantum channel is largely uncharacterized. An experimental demonstration of device-independent quantum key distribution is…

Quantum Physics · Physics 2020-06-16 M. Ho , P. Sekatski , E. Y. -Z. Tan , R. Renner , J. -D. Bancal , N. Sangouard

We present a device-independent protocol for oblivious transfer (DIOT) and analyze its security under the assumption that the receiver's quantum storage is bounded during protocol execution and that the device behaves independently and…

Quantum Physics · Physics 2023-09-11 Anne Broadbent , Peter Yuen

Very recently, the experimental demonstration of Quantum Secure Direct Communication (QSDC) with state-of-the-art atomic quantum memory has been reported (Phys. Rev. Lett., 2017). Quantum Dialogue (QD) falls under QSDC where the secrete…

Quantum Physics · Physics 2017-10-27 Arpita Maitra

Device-independent quantum key distribution (DIQKD) represents a relaxation of the security assumptions made in usual quantum key distribution (QKD). As in usual QKD, the security of DIQKD follows from the laws of quantum physics, but…

Quantum Physics · Physics 2009-04-30 Stefano Pironio , Antonio Acin , Nicolas Brunner , Nicolas Gisin , Serge Massar , Valerio Scarani

Communication security has to evolve to a higher plane in the face of the threat from the massive computing power of the emerging quantum computers. Quantum secure direct communication (QSDC) constitutes a promising branch of quantum…

Quantum Physics · Physics 2025-01-03 Dong Pan , Gui-Lu Long , Liuguo Yin , Yu-Bo Sheng , Dong Ruan , Soon Xin Ng , Jianhua Lu , Lajos Hanzo

Quantum secure direct communication (QSDC) is a rapidly developing quantum communication approach, where secure information is directly transmitted, providing an alternative to key-based (de)encryption processes via Quantum Key Distribution…

We present a quantum secure direct communication protocol where the channels are not maximally entangled states. The communication parties utilize decoy photons to check eavesdropping. After ensuring the security of the quantum channel, the…

Quantum Physics · Physics 2011-02-19 Jian Wang , Quan Zhang , Chao-jing Tang

The capability to reliably transmit and store quantum information is an essential building block for future quantum networks and processors. Gauging the ability of a communication link or quantum memory to preserve quantum correlations is…

Device-independent quantum secret sharing (DI QSS) relaxes security assumptions of experimental devices to provide the highest security level for QSS. Previous DI QSS protocols require to generate multi-partite entangled states and then…

Quantum Physics · Physics 2025-05-19 Qi Zhang , Cheng Zhang , Wei Zhong , Ming-Ming Du , Lan Zhou , Yu-Bo Sheng

Device-independent quantum key distribution (DI-QKD) enables two remote parties to share an information-theoretically secure key without any assumptions on the inner workings of the devices used. Device-independent conference key agreement…

Device-independent quantum key distribution (DI-QKD) provides the gold standard for secure key exchange. Not only it allows for information-theoretic security based on quantum mechanics, but it relaxes the need to physically model the…