The road to quantum datacentres goes beyond logical qubits | Computer Weekly
Briefly

Commercial viability in quantum computing remains uncertain due to missing components in the technology. Expert discussions at the Quantum Datacenter Alliance Forum highlighted challenges such as the limitations of existing laser technologies and the scalability concerns for quantum computing systems. High-powered lasers often lack coherence, making them unsuitable, while increasing the number of qubits raises questions about the necessary infrastructure. Dilution refrigerators needed for superconductive environments are primarily designed for academic use, complicating their application in commercial systems.
"You can find very high-powered lasers, but these lasers do not have any kind of coherence, which makes them unsuitable for use in quantum computers."
"If we just build another system next to a quantum computer and then figure out how to connect it, I would say that it is extensible. It's not scalable."
"These are very impressive, but they have largely been built for an academic market."
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