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“超表面”器件能集成光子量子操作
Ke Ji Ri Bao· 2025-08-03 23:40
Core Insights - Harvard University researchers have developed a new optical device called "metasurface" that can perform complex quantum operations on a single plane, addressing scalability issues in photon quantum information processing [1][2] - The metasurface integrates multiple traditional optical component functions, potentially revolutionizing quantum computing and quantum communication at room temperature [1][2] Group 1: Metasurface Technology - The metasurface is a nanometer-thick optical element with micro-nano structures smaller than the wavelength of light, allowing precise control over light's phase and polarization [2] - This technology condenses complex quantum optical systems into a miniaturized platform, significantly enhancing system stability and interference resistance [2] Group 2: Design and Production - The research team utilized graph theory to model multi-photon interference paths, translating these abstract graphs into actual nanoscale structures on the metasurface [2] - This method closely links metasurface design with quantum optical states, providing a systematic approach for constructing specific quantum state devices [2] - The integrated design of the device greatly reduces optical loss, which is crucial for maintaining quantum information integrity [2] - The device can be mass-produced using existing semiconductor manufacturing processes, indicating potential for low-cost and replicable production models [2] Group 3: Broader Applications - The potential applications of this technology extend beyond quantum computing, with prospects for advancements in quantum sensing and fundamental research, offering new tools akin to "chip laboratories" [2]
原来这么多大佬都在阿里上过班?
猿大侠· 2025-05-21 04:34
以下文章来源于数据结构和算法 ,作者博哥 数据结构和算法 . 《算法秘籍》作者王一博,专注于互联网大厂热点事件和算法题讲解。 最近网上有人列出了曾经在阿里巴巴上过班并离职创业成功的十位大佬,不得不说阿里巴巴确实在 向社会输入人才。 这里面孙彤宇是阿里巴巴初创团队成员之一,1999 年阿里巴巴刚成立的时候就加入了,2003 年 受马云指派创建淘宝网,后任淘宝网总裁、阿里巴巴副总裁等职,2008 年 3 月离职。 而何小鹏在2004 年联合创立 UC 优视,打造用户超 4 亿的 UC 浏览器,后来被阿里巴巴收购,在 后来离职创办小鹏汽车,也算是在阿里上过班。 --------------下面是今天的算法题-------------- 来看下今天的算法题,这题是LeetCode的第 1514题:概率最大的路径,难度是中等。 给你一个由 n 个节点(下标从 0 开始)组成的无向加权图,该图由一个描述边的列表组成,其中 edges[i] = [a, b] 表示连接节点 a 和 b 的一条无向边,且该边遍历成功的概率为 succProb[i] 。 指定两个节点分别作为起点 start 和终点 end ,请你找出 从起点到 ...