Advances in Quantum Information Processing: Theory, Methods and Emerging Applications

Dear Colleagues,

Quantum Information Processing (QIP) has evolved from foundational studies of qubits and quantum algorithms into a broad interdisciplinary field encompassing continuous-variable systems, hybrid quantum–classical architectures, and domain-specific applications such as secure communication, quantum sensing, and quantum-enhanced optimization. The second volume of this Special Issue seeks cutting-edge contributions that push the boundaries of theory, advance experimental implementations, and demonstrate real-world impacts across science and engineering.

Topics of Interest:

We invite original research articles and high-quality reviews in, but not limited to, the following areas:

• Quantum Algorithms and Complexity: Novel algorithms, complexity analyses, and quantum-speedup benchmarks;
• Error Correction and Fault Tolerance: New codes, fault-tolerant architectures, and error-suppression techniques;
• Continuous-Variable and Hybrid Systems: Gaussian protocols, non-Gaussian resources, and hybrid discrete–continuous schemes;
• Quantum Communication and Key Distribution: Next-generation QKD protocols, network architectures, and security proofs;
• Quantum Machine Learning and Optimization: Variational circuits, QUBO formalisms, and domain-specific heuristics;
• Emerging Applications: Quantum sensing, imaging, healthcare, finance, energy systems, and beyond.

Dr. Wenbin Yu
Dr. Yadang Chen
Dr. Chengjun 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-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Information 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 1800 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.