Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Journal of Modern Optics

Quantum Cryptography with Interferometric Quantum Entanglement

ARTUR K. EKERT, G. Massimo Palma

Published Dec 1, 1994• 25 citations
Publisher

Abstract

We provide a theoretical analysis of a quantum interferometric method in quantum cryptography based on the non-local nature of quantum entanglement which is currently being implemented in the laboratory.
DOI
10.1080/09500349414552261

Related papers

Entanglement-Based Quantum Cryptography and Quantum Communication

Anton Zeilinger

Bulletin of the American Physical Society•Mar 8, 2007•0 citations

Protocols Using Single Quantum Systems

Tofiq Mansurov, Rahman Salman Mammadov, Elnur Mansurov

Currently, theoretical and experimental work in the field of quantum cryptography is being carried out in many research centers around the world. Over the past two decades since the start of active research, many quantum cryptographic protocols have been proposed, a significant number of laboratory experiments have been performed on their practical implementation, important work has been done to prove the resistance of the proposed protocols to certain types of attacks, and the first commercial quantum key distribution systems have been developed. However, there are still many tasks and problems in the field of quantum cryptography, the solution of which is of great scientific and technical importance. So, in particular, such a promising direction as quantum protocols for direct secure communication requires further development, allowing, under certain conditions, to transfer secret information without encryption, both between two and between a large number of users. Currently, such protocols have been developed using two-and three-particle entangled states, but there are almost no similar protocols with entangled states of a larger number of qubits that do not require large quantum memory for their implementation and, at the same time, have a large information capacity. Therefore, the development of new quantum direct secure communication protocols with increased information capacity, the analysis of their resistance to attacks, as well as the determination of the best protocols according to the criteria of resistance and information capacity.

International Scientific-Practical Conference Problems of Infocommunications Science and Technology•Oct 10, 2022•0 citations

Recent developments and challenges of quantum cryptography

Jozef Gruska, Jan Bouda

Presentation of basic research directions and results of contemporary quantum cryptography.

•Jan 1, 2008•0 citations

Security proof for quantum cryptography against entanglement-measurement attack

Zhaoxu Ji, Huanguo Zhang

Entanglement-measurement attack is one of the most famous attacks against quantum cryptography. In quantum cryptography protocols, eavesdropping checking is an effective means to resist this attack. There are currently two commonly used eavesdropping checking methods: one is to prepare two sets of non-orthogonal single-particle states as decoy states, and determine whether there are eavesdroppers in the quantum channel by comparing the states obtained by measurements with the original states; The other is to prepare two sets of non-orthogonal entangled states and use their entanglement correlations to judge whether there are eavesdroppers in the quantum channel. In this paper, we theoretically demonstrate how quantum cryptography can utilize these two eavesdropping checking methods to resist entanglement-measurement attacks. We take the quantum cryptography protocols based on maximally entangled states as examples to demonstrate the proof process, transitioning from qubit-based protocols to qudit-based ones.

arXiv:2012.14275•Dec 24, 2020•4 citations

Quantum Spin Matrix Cryptography

Jincheng Zhang

Quantum spin matrices offer a novel approach to cryptography due to their inherent properties of entanglement and non-linearity. This paper explores the design of a quantum spin matrix-based cryptography system, aiming to achieve a level of security currently unattainable through conventional methods. We outline the core mechanism involving non-linear matrix transformations and the potential application of quantum spin's unique characteristics, specifically entanglement, to enhance cryptographic security. The paper discusses the theoretical underpinnings and potential challenges associated with this approach, emphasizing the importance of rigorous analysis and validation.

•Aug 31, 2026•0 citations

Harnessing Quantum Entanglement for Enhancing the Integrity of Quantum Cryptography

Hari Mohan, Siddharth Rana, Amanzholova Saule Toksanovna

IEEE International Conference on Innovations in High Speed Communication and Signal Processing (IHCSP)•Dec 6, 2024•0 citations
Currently, theoretical and experimental work in the field of quantum cryptography is being carried out in many research centers around the world. Over the past two decades since the start of active research, many quantum cryptographic protocols have been proposed, a significant number of laboratory experiments have been performed on their practical implementation, important work has been done to prove the resistance of the proposed protocols to certain types of attacks, and the first commercial quantum key distribution systems have been developed. However, there are still many tasks and problems in the field of quantum cryptography, the solution of which is of great scientific and technical importance. So, in particular, such a promising direction as quantum protocols for direct secure communication requires further development, allowing, under certain conditions, to transfer secret information without encryption, both between two and between a large number of users. Currently, such protocols have been developed using two-and three-particle entangled states, but there are almost no similar protocols with entangled states of a larger number of qubits that do not require large quantum memory for their implementation and, at the same time, have a large information capacity. Therefore, the development of new quantum direct secure communication protocols with increased information capacity, the analysis of their resistance to attacks, as well as the determination of the best protocols according to the criteria of resistance and information capacity.
Entanglement-measurement attack is one of the most famous attacks against quantum cryptography. In quantum cryptography protocols, eavesdropping checking is an effective means to resist this attack. There are currently two commonly used eavesdropping checking methods: one is to prepare two sets of non-orthogonal single-particle states as decoy states, and determine whether there are eavesdroppers in the quantum channel by comparing the states obtained by measurements with the original states; The other is to prepare two sets of non-orthogonal entangled states and use their entanglement correlations to judge whether there are eavesdroppers in the quantum channel. In this paper, we theoretically demonstrate how quantum cryptography can utilize these two eavesdropping checking methods to resist entanglement-measurement attacks. We take the quantum cryptography protocols based on maximally entangled states as examples to demonstrate the proof process, transitioning from qubit-based protocols to qudit-based ones.
Quantum spin matrices offer a novel approach to cryptography due to their inherent properties of entanglement and non-linearity. This paper explores the design of a quantum spin matrix-based cryptography system, aiming to achieve a level of security currently unattainable through conventional methods. We outline the core mechanism involving non-linear matrix transformations and the potential application of quantum spin's unique characteristics, specifically entanglement, to enhance cryptographic security. The paper discusses the theoretical underpinnings and potential challenges associated with this approach, emphasizing the importance of rigorous analysis and validation.