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PsiQuantum Raises $1 Billion to Advance Quantum Computing and the Future of the Internet



The internet is on the brink of a technological revolution, as advances in quantum computing promise to redefine how data is processed, transmitted, and secured. In a significant development, PsiQuantum, a quantum computing startup company, has raised a record-breaking $1 billion in funding aimed at building a million-qubit quantum computer by 2028. This investment underscores growing investor confidence in the potential of quantum technologies and their ability to transform both scientific research and everyday digital infrastructure.

Unlike traditional quantum computing approaches that rely on cryogenic qubits kept at near absolute zero, PsiQuantum is pursuing a photonic qubit architecture. Photonic qubits use particles of light to store and manipulate information, offering potential advantages in scalability and stability. By targeting a million-qubit system, PsiQuantum aims to overcome some of the limitations that have constrained the expansion of conventional quantum computers. Such a machine could handle computations far beyond the capabilities of today’s classical supercomputers.

The implications for the internet are profound. Quantum computing could dramatically enhance the speed and efficiency of data processing, enabling near-instantaneous simulations, complex optimizations, and more sophisticated AI applications. In cybersecurity, quantum technology holds promise for new encryption methods that could significantly enhance the security of sensitive online communications. The rise of a million-qubit quantum computer could therefore reshape the very backbone of the internet, supporting faster, safer, and more intelligent digital interactions.

Investor enthusiasm reflects the belief that scalable quantum architectures, like the photonic approach, may overcome the challenges faced by traditional cryogenic systems. Maintaining qubits at ultra-low temperatures is technically demanding and challenging to scale, whereas photonic qubits could be more practical for building huge quantum machines. This funding round not only provides the capital needed for research and development but also signals confidence in the broader potential of quantum computing to integrate with existing digital infrastructure, including the internet.

Quantum computing is poised to impact a range of industries reliant on the internet, from finance and logistics to healthcare and energy. Complex problems, such as optimizing global supply chains, modeling molecular interactions, or predicting market dynamics, could be solved in minutes rather than days. By enabling faster and more accurate computation, quantum machines could help improve online services, real-time data analytics, and AI-driven decision-making, driving a new era of innovation on the internet.

However, the road to a million-qubit system is not without challenges. Engineering, error correction, and integration with current computing systems remain formidable hurdles. PsiQuantum’s ambitious target demonstrates a high level of commitment and ambition, but the practical implementation of such a machine will require breakthroughs in both hardware and software. Still, the funding and investor support provide a strong foundation for advancing these goals.

PsiQuantum’s $1 billion funding milestone marks a major step forward for quantum computing and its potential to transform the internet. By focusing on photonic qubits and aiming for unprecedented scalability, the company is pushing the boundaries of what is possible in computational power. The next several years will likely see significant progress, with implications ranging from faster online services and AI advancements to enhanced cybersecurity. As quantum technology matures, it may redefine the way the internet operates, offering a glimpse into a faster, smarter, and more secure digital future.

Mitchell Booth, 22 Sep 2025