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Quantum computers are central to the geopolitical rivalry between China and the US, with significant developments in Shenzhen. Chinese firms like SpinQ are advancing technologies that could potentially break current encryption methods, impacting critical infrastructures.

The Chinese government emphasizes quantum technology in its Five-Year Plan, while the US relies on corporate innovation. Both nations invest heavily in research and development, with China focusing on state-led initiatives. The competition extends to quantum communication, where China leads, and quantum sensors, where both nations are equal.