Quantum computing represents a paradigm shift in computational capability with profound implications for global technological supremacy, economic competitiveness, and national security. This comprehensive survey synthesizes the current state of quantum computing development across major powers and introduces the Quantum Strategic Competitiveness Index (QSCI) as a novel analytical framework for quantifying national quantum capabilities. Through systematic analysis of publicly available data from government reports, research publications, and policy documents, we assess quantum competitiveness across five dimensions: investment intensity, research quality, innovation output, human capital, and implementation readiness. Our analysis reveals that China leads in absolute public investment (approximately $15 billion as reported by multiple sources [11,13]), while the United States maintains superiority in research quality (34% of top-cited papers [12]) and private sector engagement (44% of global funding [12]). The European Union demonstrates strong public-academic collaboration with over €11 billion committed [14, 15]. We provide rigorous mathematical foundations of quantum computing principles, analyze recent experimental achievements including Google's Willow processor achieving below-threshold error correction [4], and examine cryptographic vulnerabilities requiring immediate post-quantum migration. Economic impact analysis with uncertainty quantification projects quantum computing generating $950
Quantum computing represents a paradigm shift in computational capability with profound implications for global technological supremacy, economic competitiveness, and national security. This comprehensive survey synthesizes the current state of quantum computing development across major powers and introduces the Quantum Strategic Competitiveness Index (QSCI) as a novel analytical framework for quantifying national quantum capabilities. Through systematic analysis of publicly available data from government reports, research publications, and policy documents, we assess quantum competitiveness across five dimensions: investment intensity, research quality, innovation output, human capital, and implementation readiness. Our analysis reveals that China leads in absolute public investment (approximately 15billionasreportedbymultiplesources[11,13]),whiletheUnitedStatesmaintainssuperiorityinresearchquality(34950
This article examines the intensifying strategic competition between the United States and China across three interrelated domains of quantum technology: quantum computing, quantum sensing, and quantum communications. Drawing on a qualitative comparative case-study methodology and engaging with theoretical frameworks of techno-nationalism, great-power competition, and military innovation, the article argues that quantum technologies have transcended their origins as instruments of scientific discovery and are now emerging as critical vectors of national power. Quantum capabilities hold the potential to compromise existing encryption architectures, transform battlefield intelligence and surveillance, revolutionise secure command-and-control communications, and render certain conventional deterrent postures strategically vulnerable. The article analyses the strategic investments, institutional ecosystems, and policy architectures through which both states are mobilising quantum capabilities, and it assesses the implications for military advantage, nuclear deterrence, and strategic stability. It concludes that the quantum race introduces new forms of uncertainty and instability into an already fraught great-power relationship, and that the absence of governance mechanisms or confidence-building measures in this domain represents a significant gap in international security architecture. The article contributes to the growing literature on emerging technology and strategic competition by offering a comprehensive comparative assessment of quantum power in the context of U.S.-China rivalry.
Quantum computing is one of the evolving fields within computer science. It leverages benefits from physics, mathematics, and quantum principles in order to develop a computer with capabilities not ever witnessed before. Such a computer is based on complex physics and is able to store and process data in units of "qubits" that enable electronics or photons to be available in more than one state simultaneously. A distinguishing characteristic of a quantum computer is its ability to perform certain calculations and solve or simulate complex problems exponentially faster than classical computers. From a governmental perspective, such a technology is a double-edged sword. A quantum computer that is able to break public-key cryptography may pose threats due to its potential to leak confidential and sensitive government information. On the other hand, quantum cryptography and quantum key distribution can lead to a secured communication where exchanged data are secured against cyber-attacks. Despite the absence of a fully realized quantum computer model, governments worldwide recognize the substantial potential of quantum technology to drive economic development and safeguard critical national security data, they have actively positioned themselves in the race to advance quantum technology. This survey reviews the research and development of several branches of quantum computing used for critical national infrastructures. It aims to map potential use cases of quantum computing with critical national infrastructure applications. The survey is divided into two main sections, namely, quantum communication and cryptography, and quantum networks, where each of these is further reviewed from different angles. This includes opportunities and challenges quantum computing can pose for governmental communications. Also, it reviews the advancement of quantum satellites and quantum drones for establishing a reliable quantum network. In addition, it touches on the use of quantum technologies within the realm of space. From the reviewed studies in this survey, it is concluded that despite the substantial effort and research in the quantum computing field, the practical integration of quantum computing into national infrastructure needs to be further studied to assess its implementation feasibility.
The pursuit of quantum supremacy is a scientific quest and a catalyst for transformative business operations on a global scale. Quantum computing is set to revolutionize diverse sectors, including finance, pharmaceuticals, logistics, and cybersecurity, by offering unprecedented computational power and efficiency. As businesses navigate this evolving landscape, they must adapt to the geopolitical competition influencing access to vital technologies and resources. This paper delves into how quantum supremacy will shape global business strategies, drawing on historical and technological races and projecting future scenarios where early adopters secure substantial advantages. By comprehending and leveraging the geopolitical dynamics surrounding quantum technologies, businesses can strategically position themselves to capitalize on the transformative potential of quantum computing, driving innovation and operational excellence in an increasingly competitive world.
"The rapid advancement of quantum computing poses a significant threat to the cybersecurity of our increasingly digitized world. As quantum computers become more powerful and accessible, they have the potential to break many of the cryptographic algorithms that currently secure our sensitive data, financial transactions, and critical infrastructure. This looming “quantum threat” has far-reaching implications for individuals, organizations, and nation-states, as it could lead to widespread data breaches, economic disruption, and compromised national security. Despite the growing recognition of this risk, existing legal and regulatory frameworks are largely unprepared to address the unique challenges of quantum-enabled cyber threats. Moreover, the geopolitical implications of the quantum revolution are complex and multifaceted, with the potential to reshape the global balance of power and exacerbate technological inequalities. To mitigate these risks and promote quantum readiness, there is an urgent need for the international community to develop new legal frameworks and cooperative mechanisms that span technical, economic, legal, and political domains. This article provides an interdisciplinary analysis of the quantum threat to cybersecurity, examines its potential impacts across various sectors and international relations, and offers policy recommendations for developing a comprehensive global governance framework. By proactively addressing this challenge through multi-stakeholder collaboration and quantum-resistant solutions, we can work towards a more secure and resilient digital future in the face of this transformative technology. "
The emergence of quantum computing represents one of the most significant paradigm shifts in the history of computation, with profound implications for offensive security and cyber warfare. This comprehensive research paper presents a systematic analysis of quantum-enabled offensive capabilities, novel attack vectors targeting quantum systems themselves, and the evolving threat landscape at the intersection of quantum computing and artificial intelligence. We introduce the Q-THREAT Framework, a novel temporal risk assessment model that quantifies the "Harvest Now, Decrypt Later" threat across different data confidentiality lifetimes and sectoral exposures. This research synthesizes and categorizes recently documented attack vectors including quantum Rowhammer exploits, timing-based side-channel vulnerabilities in cloud quantum services, and multi-tenant quantum system intrusions. Recent research demonstrates that current quantum cloud platforms from major providers including IBM, Rigetti, and others exhibit significant security vulnerabilities that could be exploited by adversaries to compromise computational integrity, extract sensitive circuit information, and disrupt quantum computations. Furthermore, we analyze the convergence of quantum computing and artificial intelligence as a force multiplier for offensive cyber operations. We present evidence that quantum machine learning algorithms can demonstrate competitive or superior performance in certain cybersecurity applications compared to classical approaches in controlled experimental settings, with recent studies reporting high accuracies in tasks such as malware detection and intrusion detection on benchmark datasets. Our analysis of nation-state quantum programs reveals an accelerating global quantum arms race with significant implications for national security. Based on our findings, we propose a comprehensive defensive framework incorporating post-quantum cryptographic standards, crypto-agility principles, and quantum-safe architectural patterns. This research contributes to the nascent field of quantum cybersecurity by establishing foundational threat models, identifying critical research gaps, and providing actionable recommendations for organizations preparing for the quantum era.
Quantum cybersecurity has emerged as a critical strategic issue at the intersection of national security, technological advancement, and digital sovereignty. As quantum computing technology advances toward practical implementation, the dual-edged nature of this revolutionary technology becomes increasingly apparent: while quantum computers threaten to break traditional encryption methods like RSA and ECC, they simultaneously promise to enable quantum-resistant algorithms through post-quantum cryptography (PQC). This comprehensive analysis examines the current state of quantum cybersecurity threats, the global investment landscape in quantum technologies, the vulnerability of critical sectors, and the urgent need for proactive migration to quantum-safe solutions. With NIST’s finalization of post-quantum cryptography standards in 2024 and projected quantum threats materializing by 2030, organizations across defense, finance, healthcare, and critical infrastructure must accelerate their transition to quantum-resistant technologies. The geopolitical implications are profound, with China, the United States, and European Union engaging in an unprecedented quantum arms race that will determine future cybersecurity leadership and technological sovereignty.