Advances in Quantum Mechanics : Contemporary Trends and Open Problems

Dutta, Hrishikesh, Amit Kumar Bhuyan

With the recent advancements and developments in quantum technologies, the emerging field of quantum communication and networking has gained the attention of the researchers. Owing to the unique properties of quantum mechanics, viz., quantum superposition and entanglement, this new area of quantum communication has shown potential to replace modernday communication technologies. The enhanced security and high information sharing ability using principles of quantum mechanics has encouraged networking engineers and physicists to develop this technology for next generation wireless systems. However, a conceptual bridge between the fundamentals of quantum mechanics, photonics and the deployability of a quantum communication infrastructure is not well founded in the current literature. This paper aims to fill this gap by merging the theoretical concepts from quantum physics to the engineering and computing perspectives of quantum technology. This paper builds the fundamental concepts required for understanding quantum communication, reviews the key concepts and demonstrates how these concepts can be leveraged for accomplishing successful communication. The paper delves into implementation advancements for executing quantum communication protocols, explaining how hardware implementation enables the achievement of all basic quantum computing operations. Finally, the paper provides a comprehensive and critical review of the state-of-the-art advancements in the field of quantum communication and quantum internet; and points out the recent trends, challenges and open problems for the real-world realization of next generation networking systems.

Syed Muntasir Mamun

The measurement problem remains one of the most profound foundational issues in quantum mechanics. While the theory excels at predicting probabilities of measurement outcomes via the Schrödinger equation and the Born rule, it fails to provide a consistent, unitary description of the measurement process itself. This paper offers a comprehensive teaching-oriented review: it traces the historical development from the 1920s Copenhagen formulation through Schrödinger's cat paradox, examines the core mathematical and conceptual questions, analyses major interpretations (with a detailed exposition of the Many-Worlds Interpretation and an expanded treatment of decoherence theory), discusses Bell's theorem and its experimental tests, surveys contemporary trends as of 2025–2026 (including quantum computing implications), and evaluates the quantum-to-classical transition. The analysis highlights that the problem is not merely philosophical but has direct implications for quantum technologies, macroscopic superpositions, and our understanding of reality. No single interpretation is endorsed; instead, strengths, limitations, and open questions of each are presented to equip readers with a clear conceptual map. Mamun, SM (2026)……………………………………..1 The Quantum Measurement Problem: Historical Evolution, Fundamental Questions, Interpretations, Bell Tests, and Current Trends (Vol - I) Also available on Academia.edu: https://www.academia.edu/attachments/132618367/download_file?s=portfolio

Heinz Dietrich Doebner, S.T. Ali, Michael Keyl +1 more

Arshad Ali

The advancements in quantum computing and quantum cryptology have recently started to gain momentum and transformation of usable quantum technologies from dream to reality has begun to look viable. This has created an immediate requirement to comprehend quantum attacks and their cryptographic implications, which is a prerequisite obligation to design cryptographic systems resistant to current and futuristic projected quantum and conventional attacks. In this context, this paper reviews the prevalent quantum concepts and analyses their envisaged impact on various aspects of modern-day communication and information security technologies. Moreover, the paper also presents six open-problems and two conjectures, which are formulated to define prerequisite technological obligations for fully comprehending the futuristic quantum threats to contemporary communication security technologies and information assets processed through these systems. Furthermore, the paper also presents some important concepts in the form of questions and discusses some recent trends adapted in cryptographic designs to thwart quantum attacks.

Michael Drieschner