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可扩展中性原子阵列技术获验证
Ke Ji Ri Bao· 2026-01-20 09:56
Core Insights - The research team from Columbia University aims to enhance the number of quantum bits in quantum computers from approximately 1,000 to over 100,000 by combining optical tweezers with metasurface technology [1][2] Group 1: Quantum Computing Advancements - The team has successfully captured 1,000 strontium atoms and validated that this method can theoretically scale to over 100,000 atoms, which could serve as quantum bits in future quantum computers [1] - Neutral atom arrays are emerging as a new platform for constructing quantum computers, leveraging the natural advantages of atoms in exhibiting quantum superposition and entanglement [1] Group 2: Technological Innovations - The metasurface used in the research is made of silicon nitride and titanium dioxide, capable of withstanding laser intensities exceeding 2,000 watts per square millimeter, which is about one million times the intensity of sunlight at the Earth's surface [2] - The team created a 3.5 mm diameter metasurface containing over 100 million pixels, capable of generating a 600×600 array totaling 360,000 optical tweezers, representing a two-order-of-magnitude increase compared to existing technologies [2] Group 3: Broader Applications - This technology not only has the potential to advance large-scale quantum computing but can also be applied in quantum simulation and high-precision optical atomic clocks, enhancing the field of neutral atom quantum technologies [2]