Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
4.9
2.1
Journals
Entropy
Special Issues
New Advances in Quantum Communication and Networks, 2nd Edition
entropy-logo
Submit to Special Issue Submit Abstract to Special Issue Review for Entropy Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

New Advances in Quantum Communication and Networks, 2nd Edition

A special issue of Entropy (ISSN 1099-4300). This special issue belongs to the section "Quantum Information".

Deadline for manuscript submissions: 30 November 2026 | Viewed by 527

Editors

Prof. Dr. Gui-Lu Long

E-Mail Website
Guest Editor
1. Beijing Academy of Quantum Information Sciences, Beijing 100193, China
2. Department of Physics, Tsinghua University, Beijing 100084, China
Interests: quantum communication; quantum computation; quantum information; quantum secure direct communication; quantum algorithm
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Xiao-Ming Xiu

E-Mail
Guest Editor
College of Physics Science and Technology, Bohai University, Jinzhou 121013, China
Interests: quantum information; quantum communication; quantum logic gate; quantum state preparation; quantum information processing
Dr. Fei-Hao Zhang

E-Mail
Guest Editor
Beijing Academy of Quantum Information Science, Beijing 100193, China
Interests: quantum information; quantum communication; quantum sensing quantum control

Special Issue Information

Dear Colleagues,

Quantum communication is a new communication technology that uses quantum states and quantum effects to transmit random numbers (quantum key distribution), information (quantum secure direct communication), and quantum information (quantum teleportation) and the like. Traditional secure communication relies on mathematical complexity for encryption to protect information security by making it incomprehensible for eavesdroppers. This encryption method faces the threat of the development of supercomputers and quantum computers. The obtainer can store the ciphertext to be deciphered in the future when there are better algorithms and more powerful computers. Quantum communication relies on the ability to perceive eavesdropping with quantum theory so that eavesdroppers cannot see, hear, or obtain signals to ensure information security. These two communication methods have different mechanisms and complement each other to jointly protect the security of communication.

In 2025, scientists realized quantum secure direct communication spanning 100 kilometers with a transmission rate of 2.38 kbps. In 2026, scientists realized device-independent quantum key distribution over 100 kilometers. These major research achievements indicate that quantum communication is becoming more practical. Nevertheless, there are still many difficulties that need to be solved in practical applications, for example, in reducing the interference of environmental noise in long-distance quantum communication, improving the security of quantum signals at relay nodes, and so on. This Special Issue aims to summarize and publish research results and research trends in the field of quantum communication and networks.

Prof. Dr. Gui-Lu Long
Prof. Dr. Xiao-Ming Xiu
Dr. Fei-Hao Zhang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-anonymized peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Entropy is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • quantum communication
  • quantum secure direct communication
  • quantum key distribution
  • device-independent quantum key distribution
  • device-independent quantum secure direct communication
  • quantum teleportation
  • quantum repeater
  • secure classical repeater
  • quantum network
  • quantum secret sharing

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Related Special Issue

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

26 pages, 1816 KB  
Article
Data-Driven Quantification of Quantum k-Entanglement via Machine Learning
by Jie Guo, Jinchuan Hou, Xiaofei Qi and Kan He
Entropy 2026, 28(7), 832; https://doi.org/10.3390/e28070832 - 22 Jul 2026
Abstract
k-entanglement, including entanglement relative to full separability and genuinely multipartite entanglement, is a fundamental quantum resource in multipartite quantum systems. Its identification and quantification play essential roles in quantum information processing, quantum simulation, and quantum metrology. However, the practical computation of rigorous [...] Read more.
k-entanglement, including entanglement relative to full separability and genuinely multipartite entanglement, is a fundamental quantum resource in multipartite quantum systems. Its identification and quantification play essential roles in quantum information processing, quantum simulation, and quantum metrology. However, the practical computation of rigorous k-entanglement measures remains highly challenging due to the need for high-dimensional optimization. In this work, we propose a machine-learning-based surrogate framework for approximating the witness-based k-entanglement measure Ew(k,n). The numerical evaluation of the computationally realized quantity E˜w(k,n)(ρ) is reformulated as a supervised regression problem, where the input is the density matrix ρ and the labels are obtained from finite witness databases. The framework combines multilayer perceptrons (MLPs), convolutional neural networks (CNNs), and light gradient boosting machine (LightGBM) through a stacking ensemble. Numerical experiments are performed for 3- and 4-qubit systems as representative demonstrations of the proposed workflow. The results show that the learned models achieve high predictive accuracy in terms of MAE, MSE, and R2, while providing millisecond-level inference for single-state evaluation. Werner state tests serve as symmetric benchmark checks, and an additional four-qubit noisy circuit-generated state family, obtained from finite-depth circuit preparation followed by local amplitude-damping noise, is used as a structured physical test beyond random density matrices. Compared with the optimization-based evaluation, the trained surrogate model significantly reduces the computational time while maintaining accuracy within the tested system sizes and data distributions. These results show that the proposed framework provides an efficient numerical surrogate for rapid approximation of witness-based k-entanglement measures, while extensions to larger systems and experimental data require further validation. Full article
(This article belongs to the Special Issue New Advances in Quantum Communication and Networks, 2nd Edition)
13 pages, 1991 KB  
Article
Dual-Channel Voice Communication System Based on One-Way Quantum Secure Direct Communication—Classical Optical Communication Hybrid Mode
by Xiuwei Chen, Dong Pan and Jianxing Guo
Entropy 2026, 28(6), 707; https://doi.org/10.3390/e28060707 - 18 Jun 2026
Viewed by 239
Abstract
Quantum secure direct communication, as an important branch of quantum communication, possesses strict information-theoretic security and can achieve secure communication in channel environments with noise interference and eavesdropping threats. As voice communication is the most fundamental and widespread communication method in daily life, [...] Read more.
Quantum secure direct communication, as an important branch of quantum communication, possesses strict information-theoretic security and can achieve secure communication in channel environments with noise interference and eavesdropping threats. As voice communication is the most fundamental and widespread communication method in daily life, guaranteeing its security and efficiency has become an important research topic in current communication technology. One-way quantum secure direct communication technology can build an efficient and reliable security barrier for voice communication services, effectively preventing the leakage of private information in voice communication. This paper proposes a duplex voice communication scheme based on one-way quantum secure direct communication. By adopting a method combining multi-task parallel processing and stream processing, the communication rate and transmission delay performance of the system are significantly improved. Relying on quantum secure direct communication technology and the one-time-key encryption channel within the system, duplex voice communication is achieved securely. The real-time temperature drift compensation algorithm is introduced to ensure the long-term stable operation of the system. At the same time, through the real-time temperature drift prediction mechanism, the strategy selection during the call process is optimized to ensure the quality of the voice communication. To verify the feasibility and performance of this scheme, a one-way quantum secure direct communication duplex voice communication system was built in the laboratory environment, and comprehensive performance indicator tests were conducted. The test results show that the constructed one-way quantum secure direct communication system can fully meet the performance requirements of duplex voice communication. The realization of this system successfully achieves the goal of secure and efficient quantum voice communication, laying an important technical foundation for further expanding the practical application scenarios of quantum communication technology and promoting the industrialization development of quantum communication. Full article
(This article belongs to the Special Issue New Advances in Quantum Communication and Networks, 2nd Edition)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop