Technical perspective: Deciphering errors to reduce the cost of quantum computation

Li Liu

Current quantum computing systems face three core bottlenecks: decoherence caused by environmental interference, intrinsic noise of quantum states, and instability of multi-qubit entanglement structures. These issues lead to exponential growth of operation errors, high repetition trial costs, and difficulty in engineering applications. Based on the self-consistent Wave Unified Field Theory and Unified Density Wave Field Theory, this paper introduces the cosmic background wave field density correction term to optimize the microscopic quantum field evolution equation, actively suppress quantum state fluctuations and decoherence effects, and achieve a significant reduction in trial and error costs. The results show that this method can reduce the system error rate by 40%-70%, cut the number of repeated trials by 75%-90%, and increase quantum state fidelity to 98.5%-99.5% without additional hardware overhead. It provides a new theoretical perspective for low-cost, high-fidelity quantum computing development.

Jesús Yaljá Montiel-Pérez, Jordi Fabián González-Contreras, Erik Zamora +1 more

Ojo Emmanuel Ademola

Quantum computing represents a paradigm shift in computational science, offering unprecedented capabilities to solve problems beyond the reach of classical systems. Yet, its implementation and operation involve profound challenges, spanning technical, infrastructural, ethical, and national security dimensions. This article provides a comprehensive analysis of quantum computing systems, examining physical platforms, error correction, qubit connectivity, algorithm design, and industry applications. A case study on national security highlights the urgency of preparing for “Q-Day”—the moment when quantum computers can break classical encryption. Ethical analysis explores privacy, equity, governance, and responsibility, emphasising the need for global frameworks to ensure responsible deployment. By synthesising interdisciplinary perspectives, the study proposes a holistic framework for harnessing quantum computing responsibly, equitably, and securely. Keywords: Quantum computing; National security; Ethical frameworks; Implementation; Systems Operations; Error correction; Infrastructure; Governance Journal Reference Format: Ademola, O.E. (2025): Quantum Computing Systems Implementation and Operations: Technical, Ethical, and National Security Perspectives. Journal of Behavioural Informatics, Digital Humanities and Development Res. Vol. 11 No. 4. Pp 37-52. https://www.isteams.net/behavioralinformaticsjournal . dx.doi.org/10.22624/AIMS/BHI/V11N4P3

Hayata Yamasaki, Takaya Matsuura, Masato Koashi

The authors present a new mechanism to prepare magic states of the Gottesman-Kitaev-Preskill (GKP) continuous-variable quantum error-correcting code from two perspectives. The paper proposes two methods: a cost-reduced scheme of universal quantum computation by experimentally tractable Gaussian operations using the GKP magic states as a single resource, and the formulation of a resource-theoretical method for quantitatively analyzing the usefulness of magic states of the GKP code.

Ritajit Majumdar, Saikat Basu, Susmita Sur‐Kolay