Review
Computer Science, Information Systems
Syed Rakib Hasan, Mostafa Zaman Chowdhury, Md. Saiam, Yeong Min Jang
Summary: The growth of modern technological sectors has reached an impressive level, spreading the benefits of technology to every corner of the world, even remote areas. Technological development is currently based on the theoretical foundation of classical physics in various scientific fields such as wireless communication, visible light communication, machine learning, and computing. Quantum technology has surpassed the limits of existing technologies and offers improved performance, security, and reliability in communication systems. This review article provides an overview of the fundamentals, design goals, information processing, and protocols in quantum communication, as well as potential applications and challenges in implementing quantum technology in existing systems.
Article
Quantum Science & Technology
Shyam R. Sihare
Summary: The research paper presents a new approach to multi-party quantum key distribution using variational quantum eigensolvers. It aims to establish secure communication among multiple parties in a quantum network. The paper outlines a comprehensive framework and provides mathematical formulations and experimental designs.
ADVANCED QUANTUM TECHNOLOGIES
(2023)
Article
Physics, Multidisciplinary
Li-Zhen Gao, Xin Zhang, Song Lin, Ning Wang, Gong-De Guo
Summary: This paper proposes a quantum key agreement protocol to solve the problem of generating temporary session keys for secure communication in optical-ring quantum networks. The protocol includes authentication of user identity and utilizes quantum state discrimination to demonstrate its security against common attacks and impersonation attacks.
FRONTIERS IN PHYSICS
(2022)
Article
Quantum Science & Technology
Satish Kumar, Anirban Pathak
Summary: This study implements two protocols for quantum anonymous veto and finds that quantum anonymous veto can be experimentally realized in certain situations. The Bell state-based protocol performs better than the GHZ/cluster state-based implementation in ideal and noisy conditions.
QUANTUM INFORMATION PROCESSING
(2022)
Article
Engineering, Electrical & Electronic
Mahsa Khorrampanah, Monireh Houshmand
Summary: This paper presents a quantum secret sharing scheme based on quantum secure direct communication, transmitting a four-bit secret message in a way that none of the receivers can independently obtain any rate of secret message. The proposed scheme is more efficient and has better performance than existing works in the field, as it transmits more bits of secret message using fewer qubits. Additionally, the protocol is secure against potential eavesdropper attacks due to the use of inserted decoy single qubits.
OPTICAL AND QUANTUM ELECTRONICS
(2022)
Article
Quantum Science & Technology
Shuaishuai Liu, Zhenguo Lu, Pu Wang, Yan Tian, Xuyang Wang, Yongmin Li
Summary: This research proposes a practical, scalable, and verifiable quantum secret sharing protocol for multi-party secure communication. The protocol does not require special equipment and achieves high-speed data transmission. Experimental results show that this method is efficient and reliable.
NPJ QUANTUM INFORMATION
(2023)
Article
Physics, Multidisciplinary
Yuyan Wei, Siying Wang, Yajing Zhu, Tao Li
Summary: Multiparty quantum communication is a vital branch of quantum networks, allowing secure transmission of private information among legitimate parties. The proposed sender-controlled measurement-device-independent protocol ensures security and reliability in secret sharing by checking quantum channel security and receiver reliability before encoding private messages. It is a convenient solution for multiparty quantum communication.
FRONTIERS OF PHYSICS
(2022)
Article
Physics, Multidisciplinary
Zi-Fan Liu, Rui-Jie Yang, Xiao-Qiu Cai, Tian-Yin Wang
Summary: This paper proposes a multiparty quantum contract signing protocol that allows multiple clients to sign an electronic contract simultaneously. The protocol ensures unconditional security, optimism, fairness, and can be implemented with current technology.
FRONTIERS IN PHYSICS
(2023)
Article
Physics, Multidisciplinary
Chang-Kang Hu, Roie Dann, Jin-Ming Cui, Yun-Feng Huang, Chuan-Feng Li, Guang-Can Guo, Alan C. Santos, Ronnie Kosloff
Summary: The experiment with trapped ytterbium ions validates the inertial theorem for the SU(2) algebra, providing analytical solutions for non-adiabatically driven systems and bridging the gap between sudden and adiabatic limits. The results demonstrate the stability of these solutions to small deviations, paving the way for rapid quantum control of closed and open quantum systems. The inertial theorem shows good robustness in phase estimation, even in the presence of large deviations from the inertial condition.
NEW JOURNAL OF PHYSICS
(2021)
Article
Telecommunications
Bilal A. Alhayani, Omar A. AlKawak, Hemant B. Mahajan, Haci Ilhan, Roa'a Mohammed Qasem
Summary: Secure communication is an essential subject for every business and body, and its advancements are increasing significantly. Quantum computing, which makes advantage of the fundamental characteristics of quantum mechanics to process information, has become increasingly popular. While quantum encryption can address certain security challenges faced by conventional computing, recent research shows that it may still be vulnerable to hacking. Implementing protocols for quantum cryptography continues to face significant challenges, especially related to quantum bit errors.
WIRELESS PERSONAL COMMUNICATIONS
(2023)
Article
Quantum Science & Technology
Chia-Wei Tsai, Chun-Wei Yang, Jason Lin
Summary: This study proposes a multiparty mediated quantum secret sharing protocol that addresses common challenges in existing protocols and improves efficiency.
QUANTUM INFORMATION PROCESSING
(2022)
Article
Quantum Science & Technology
Johannes Pseiner, Lukas Achatz, Lukas Bulla, Martin Bohmann, Rupert Ursin
Summary: The study introduces a strategy utilizing wavelength multiplexing to generate quantum secure keys with the potential to significantly increase the key generation rate. This approach can be applied to various implementations and offers substantial scalability.
QUANTUM SCIENCE AND TECHNOLOGY
(2021)
Article
Quantum Science & Technology
Xiao-Qiu Cai, Tian-Yin Wang, Chun-Yan Wei, Fei Gao
Summary: This paper presents a cryptanalysis of a generalized quantum protocol for secure multiparty summation and identifies a security leak. A dishonest player is able to steal other players' shares and the summation of secrets without being detected, which contradicts the security requirement for secure multiparty summation. The paper also proposes an improved version to address this security problem.
QUANTUM INFORMATION PROCESSING
(2022)
Article
Quantum Science & Technology
Hui Li, Ting Gao, Fengli Yan
Summary: In this paper, we investigate the tight monogamy relations of multiparty quantum entanglement. We propose a class of improved lower bounds for the quantum states of multiparty quantum systems that satisfy constraints. We establish tighter monogamy relations in tripartite quantum systems using a new inequality, and generalize these relations to multiparty quantum systems. Furthermore, we provide several conclusions for any multiparty quantum states and prove the tightness of the lower bounds. Detailed examples are also given.
QUANTUM INFORMATION PROCESSING
(2022)
Article
Computer Science, Artificial Intelligence
Ziyu Niu, Hao Wang, Zhi Li, Xiangfu Song
Summary: Secure multiparty computation (MPC) can protect data privacy, and the ASPMT protocol can efficiently compute results without revealing additional information when processing statistical computations on intersecting data.
INTERNATIONAL JOURNAL OF INTELLIGENT SYSTEMS
(2022)
Article
Physics, Multidisciplinary
Armin Tavakoli, Nicolas Gisin, Cyril Branciard
Summary: The study presents a new type of network Bell experiment, demonstrating noise-tolerant quantum correlations and violations of bilocal variable models by introducing a set of symmetric isoentangled measurement bases.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
Armin Tavakoli
Summary: The framework allows experimenters to adjust the level of distrust in the performance of quantum devices without assuming any specific Hilbert space dimension. Quantum correlations are investigated and bounded from both interior and exterior. Efficient schemes for semi-device-independent random number generation are developed.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
Chang-Jiang Huang, Guo-Yong Xiang, Yu Guo, Kang-Da Wu, Bi-Heng Liu, Chuan-Feng Li, Guang-Can Guo, Armin Tavakoli
Summary: The research shows that mutually unbiased bases and symmetric informationally complete measurements can be used to certify quantum correlations, with a simple and noise-robust correlation witness evaluated based on outcome statistics in tomography experiments. Multiple tests, such as entangled qutrit state reconstruction, steering test, and Bell inequality test, were performed in a single experiment under flexible assumptions.
PHYSICAL REVIEW LETTERS
(2021)
Article
Quantum Science & Technology
Elisa Baumer, Nicolas Gisin, Armin Tavakoli
Summary: This study demonstrates the capabilities of state-of-the-art IBM quantum computers in correlation experiments inspired by quantum networks, showcasing the ability of quantum computers to surpass classical limitations and certify scalable entangled measurements.
NPJ QUANTUM INFORMATION
(2021)
Article
Physics, Multidisciplinary
Alejandro Pozas-Kerstjens, Nicolas Gisin, Armin Tavakoli
Summary: This paper introduces the concept of full network nonlocality and proves that it cannot be observed in the standard network Bell test. However, it is detectable in the generalization of star networks in quantum theory. Furthermore, the paper points out methods for analyzing full network nonlocality in any network and input-output scenario, and demonstrates their effectiveness through specific examples.
PHYSICAL REVIEW LETTERS
(2022)
Review
Physics, Multidisciplinary
Armin Tavakoli, Alejandro Pozas-Kerstjens, Ming-Xing Luo, Marc-Olivier Renou
Summary: Bell's theorem has proven that quantum theory contradicts local physical models, stimulating research in the foundations of quantum theory and quantum information science. In network scenarios, nonlocal correlations give rise to phenomena that do not exist in traditional Bell experiments, presenting formidable conceptual and practical challenges.
REPORTS ON PROGRESS IN PHYSICS
(2022)
Article
Physics, Multidisciplinary
Jef Pauwels, Armin Tavakoli, Erik Woodhead, Stefano Pironio
Summary: This article explores correlations in scenarios involving both entanglement and communication, focusing on entanglement-assisted prepare-and-measure scenarios. By establishing elementary relations between standard classical and quantum communication and their entanglement-assisted counterparts, it is found that higher-dimensional entanglement further enhances the power of bits or qubits. Additionally, a characterization of generalized dense coding protocols is provided, and evidence is presented that resources with a small information capacity, such as bare qutrits, can sometimes produce stronger correlations. The article concludes with several conjectures and a list of interesting open problems.
NEW JOURNAL OF PHYSICS
(2022)
Article
Physics, Multidisciplinary
Simon Morelli, Hayata Yamasaki, Marcus Huber, Armin Tavakoli
Summary: This study investigates entanglement detection in scenarios where local measurements only nearly correspond to the intended measurements. The authors formalize this through an operational notion of inaccuracy that can be estimated directly in the lab. They demonstrate that small magnitudes of inaccuracy can significantly compromise well-known entanglement witnesses.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Jef Pauwels, Stefano Pironio, Emmanuel Zambrini Cruzeiro, Armin Tavakoli
Summary: Entanglement can enhance classical communication efficiency, and its adaptive usage improves success probability and becomes a stronger resource.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Daniel Martinez, Esteban S. Gomez, Jaime Carine, Luciano Pereira, Aldo Delgado, Stephen P. Walborn, Armin Tavakoli, Gustavo Lima
Summary: The most common measurement method in quantum mechanics is to project the wavefunction onto orthogonal states that correspond to definite outcomes. However, it is possible to have generalized quantum measurements that do not fully project quantum states, which play an important role in quantum information tasks. In this study, we demonstrate the robust realization of high-quality generalized measurements in higher-dimensional systems using multiport beamsplitters. We implemented a seven-outcome generalized measurement in a four-dimensional Hilbert space with a fidelity of 99.7% and showed that it cannot be simulated by any conceivable quantum protocol based on standard projective measurements.
Article
Physics, Multidisciplinary
Jef Pauwels, Stefano Pironio, Erik Woodhead, Armin Tavakoli
Summary: This article investigates quantum information encoded in nearly qudit systems and its applications in semi-device-independent quantum information and device-independent tests. The introduced method of semidefinite relaxations helps bound the set of almost qudit correlations and address the issues encountered.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Anna Steffinlongo, Armin Tavakoli
Summary: This article investigates the recycling of nonlocality in entangled states shared between sequential observers using standard projective qubit measurements. The findings show that nonmaximally entangled states can achieve larger sequential violations, and nonlocality can be recycled using projective qubit measurements even without shared classical randomness.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Martin J. Renner, Armin Tavakoli, Marco Tulio Quintino
Summary: This article discusses the transmission of qubit states from Alice to Bob and general measurements in the form of positive operator-valued measures (POVMs). The research found that the statistics obtained in any quantum protocol can be simulated using shared randomness and only two bits of classical communication. Furthermore, it was proven that two bits of communication is the minimum cost for a perfect classical simulation. The methods were also applied to Bell scenarios, extending the well-known Toner and Bacon protocol, and demonstrating that two bits of communication are sufficient to simulate all quantum correlations associated with arbitrary local POVMs applied to any entangled two-qubit state.
PHYSICAL REVIEW LETTERS
(2023)
Article
Multidisciplinary Sciences
Ning-Ning Wang, Alejandro Pozas-Kerstjens, Chao Zhang, Bi-Heng Liu, Yun-Feng Huang, Chuan-Feng Li, Guang-Can Guo, Nicolas Gisin, Armin Tavakoli
Summary: Networks composed of independent sources of entangled particles are a rapidly developing quantum technology and a promising test-bed for fundamental physics. The certification of their post-classical properties through demonstrations of full network nonlocality is addressed. Full network nonlocality, which goes beyond standard nonlocality, has been experimentally observed in a star-shaped network featuring three independent sources of photonic qubits and joint three-qubit entanglement-swapping measurements. This experimental demonstration showcases the possibility of observing full network nonlocality beyond the bilocal scenario with current technology.
NATURE COMMUNICATIONS
(2023)
Article
Optics
Florian Pimpel, Martin J. Renner, Armin Tavakoli
Summary: We investigate whether pure entangled states can be associated with a measurement basis. We prove that for bipartite states with a local dimension of 2, 4, or 8, every state corresponds to a basis. Numerical calculations strongly suggest the same conclusion for two qutrits and three qubits. However, for some states of four qubits, we are unable to find a basis, leading us to conjecture that not all quantum states have a corresponding measurement basis.
