逻辑门是一种信息开关，使得无论是经典计算机还是量子计算机，都能被编程执行逻辑运算。量子逻辑 门利用量子比特之间的纠缠来运行，是量子计算机具有巨大潜力的根基。此次成果得益于新开发的量子 控制软件，软件基于物理模型设计逻辑门，尽可能减少对GKP码的扰动，从而在处理信息时保持其精细 结构。 GKP纠错码长期以来被认为能缓解量子计算机资源开销紧张状况。研究结果证明了这一设想在物理上可 行。该成果也意味着，未来量子计算机在硬件规模和运行效率之间有望找到新的平衡点，加速其从实验 室走向实用化。 （文章来源：科技日报） 澳大利亚悉尼大学纳米研究所团队采用量子计算纠错编码——戈特斯曼-基塔耶夫-普雷斯基尔码 （GKP），首次展示了GKP量子比特的通用逻辑门集，大幅减少了运算所需的物理量子比特数量，为量 子硬件高效处理信息奠定了基础。相关成果发表于新一期《自然·物理学》杂志。 要建造可用的大规模量子计算机，必须克服量子比特在运算中自发产生的错误。科学家通常通过"逻辑 量子比特"来抑制错误，但这需要更多的物理量子比特作为代价。随着规模扩大，硬件需求呈指数级增 长，成为一个工程难题。 GKP码能将连续、平滑的量子振荡"翻译"为干净 ...

Group 1 - The European Union has committed €4.5 billion to quantum technology, significantly increasing its investment from the initial €1 billion launched in 2018, indicating a strong urgency to remain competitive in the global tech landscape [3][4][6] - Quantum technology is seen as essential for future survival, with quantum computers potentially able to outperform current supercomputers, posing risks to existing encryption and security systems [4][5][6] - The EU's investment is not just for research but is viewed as a "ticket" to avoid being left behind in the quantum era, highlighting the high stakes involved in technological competition [3][4][5] Group 2 - Chinese companies are now involved in the standard-setting process for quantum technology, which is crucial as it allows them to influence future industry rules and gain a competitive edge [6][7][8] - The collaboration between the EU and Chinese firms is driven by the recognition that global technology supply chains are interconnected, making it impractical to exclude China from the quantum technology landscape [7][8][11] - By participating in standard-setting, Chinese companies can strategically position themselves in the future quantum technology market, avoiding past pitfalls of being dependent on foreign standards [7][8][11] Group 3 - Quantum technology is not just theoretical; it has practical implications for everyday life, including secure communications and advancements in fields like drug discovery and weather forecasting [8][9][10] - The potential applications of quantum computing could revolutionize various industries, enabling faster drug development and more accurate weather predictions, although widespread commercial use may still be years away [9][10][11] - Quantum sensors could lead to breakthroughs in medical diagnostics and geological exploration, showcasing the transformative potential of quantum technology [10][11] Group 4 - The global race for quantum technology involves multiple countries, each bringing unique strengths, indicating that collaboration may be more beneficial than competition [11][12] - The complexity of quantum technology development necessitates international cooperation, as no single nation can dominate all aspects of the field [11][12] - The ultimate goal of quantum technology development is to improve human life, emphasizing the importance of collective progress rather than individual victories [12][14]

IBM计划于2029年前在纽约波基普西的新量子数据中心交付全球首台大规模容错量子计算机。据悉， IBM量子计算机"Starling"的运算能力将比当前量子计算机高出20000倍以上。用户将能全面探索量子 态，突破现有量子计算机仅能访问有限量子特性的限制。 ...

Group 1 - The core research led by North Carolina State University focuses on achieving superluminescence at room temperature, which is crucial for the development of quantum computing without the need for extremely low temperatures [1][2] - The study provides both experimental and theoretical foundations for generating macroscopic quantum coherence at room temperature, explaining why certain materials perform better in achieving exotic quantum states under environmental conditions [1][2] - The research highlights the phenomenon of "macroscopic quantum phase transition," where a large number of quantum particles synchronize to form a collective quantum state, akin to schools of fish swimming together or fireflies flashing in unison [1] Group 2 - The study reveals the specific mechanism behind the "thermal insulation" effect in hybrid perovskite materials, where excitons aggregate to form "soliton" structures when stimulated by laser [2] - The transition of polaritons from a disordered state to an ordered structure is directly observed, marking a significant advancement in understanding the formation of macroscopic quantum states [2] - This understanding allows for the design of high-temperature quantum materials, overcoming the limitations imposed by the need for low-temperature environments in current quantum technologies [2]

据最新一期《科学》杂志报道，英国牛津大学和爱尔兰科克大学等机构合作，开发出一种强大的新技 术，首次实验证实天然材料碲化铀（UTe2）具备内在拓扑超导性。这为大规模、容错型量子计算机的 核心材料筛选提供了关键方法。 量子计算机的量子比特极易受到环境噪声干扰，导致"量子退相干"，这限制了量子计算的稳定性和实用 性。 结果表明，UTe2确实是一种内在拓扑超导体，但其中的马约拉纳费米子以成对形式存在，无法单独分 离，因此尚不能满足可操作量子比特的全部条件。 尽管如此，这项研究仍具有重大意义。这意味着，他们首次找到了一种方法，可一劳永逸地确定某种材 料是否能有效用于某些量子计算微芯片。 今年早些时候，微软发布了世界上第一个由拓扑核心驱动的量子处理单元马约拉纳1。但微软表示，需 要基于精心设计的传统材料堆栈才能合成拓扑超导体。此次研究意味着，科学家现在可使用简单的晶体 材料来取代复杂且昂贵的人工电路，为下一代量子计算提供了更经济高效的拓扑量子比特解决方案。 （文章来源：科技日报） 拓扑超导体被认为是突破这一瓶颈的理想材料。其表面能承载一种名为"马约拉纳费米子"的全新量子粒 子。理论上，这些粒子可被用于稳定地存储量子信息， ...

Core Insights - A new powerful technique has been developed by institutions including the University of Oxford and University College Cork, which has experimentally confirmed that the natural material uranium telluride (UTe2) possesses intrinsic topological superconductivity [1] Group 1 - The discovery of topological superconductivity in UTe2 is significant for the selection of core materials for large-scale, fault-tolerant quantum computers [1]

Core Insights - A new superconducting circuit design by a team from MIT is expected to increase the speed of quantum processors by 10 times, marking the strongest nonlinear light-matter coupling achieved in quantum systems to date [1] - The efficiency of quantum computing relies on the speed of complex calculations and the rapid reading of results, which is determined by the coupling strength between photons and artificial atoms [1] - The newly developed "four-component coupler" enhances the interaction between qubits and light signals, facilitating efficient information exchange [1][2] Group 1 - The superconducting circuit design demonstrates a coupling strength that is an order of magnitude higher than previously achieved, enabling quantum operations and readings to be completed in a few nanoseconds [1][2] - The research team began developing a specialized photon detector in 2019 to enhance quantum information processing capabilities [1] - The four-component coupler acts as a "translator" that improves the dialogue between light and matter, making it more efficient and precise [1] Group 2 - In experiments, the coupler was connected to two superconducting qubits, with one functioning as a resonator to detect the state of the qubit and the other as an artificial atom to store quantum information [2] - The nonlinear light-matter coupling strength produced by the four-component coupler is significantly higher than previous implementations, leading to faster reading speeds and reduced errors [2] - This research contributes to the long-term goal of building fault-tolerant quantum computers, which is crucial for practical, large-scale quantum computing [2]