https://diejiacademy.com 叠加学堂：面向中文读者的量子计算学习与科普站。不用装软件，每个概念都能在浏览器里跑一遍——布洛赫球、量子线路、Grover 搜索、BB84 窃听。80 节正文，从偏振片讲到量子纠错。 zh-CN https://diejiacademy.com/learn/myths https://diejiacademy.com/learn/myths 量子科普里流传最广的说法，一半是错的 甜点 https://diejiacademy.com/learn/history https://diejiacademy.com/learn/history 量子计算史是一连串「这不可能」被推翻 甜点 https://diejiacademy.com/learn/lab-guide https://diejiacademy.com/learn/lab-guide 自己搭一条线路，比读十页解释管用 量子实验室 https://diejiacademy.com/learn/quantum-internet https://diejiacademy.com/learn/quantum-internet 它传的是纠缠与量子态，不是比特流 应用与生态 https://diejiacademy.com/learn/sdk-platforms https://diejiacademy.com/learn/sdk-platforms 先在本站把线路跑通，再上真机验证 应用与生态 https://diejiacademy.com/learn/annealing https://diejiacademy.com/learn/annealing 退火是专用启发式，不是通用门模型 应用与生态 https://diejiacademy.com/learn/quantum-ml https://diejiacademy.com/learn/quantum-ml 数据加载往往比模型更贵 应用与生态 https://diejiacademy.com/learn/quantum-advantage https://diejiacademy.com/learn/quantum-advantage 赢的是某个特定任务，不是全面超越 应用与生态 https://diejiacademy.com/learn/hype https://diejiacademy.com/learn/hype 绝大多数问题，经典计算机更便宜也更快 应用与生态 https://diejiacademy.com/learn/pqc-migration https://diejiacademy.com/learn/pqc-migration 换算法一天，换系统要好几年 应用与生态 https://diejiacademy.com/learn/qkd-devices https://diejiacademy.com/learn/qkd-devices 协议安全不等于设备安全 应用与生态 https://diejiacademy.com/learn/post-quantum https://diejiacademy.com/learn/post-quantum 换算法比换硬件快得多 应用与生态 https://diejiacademy.com/learn/bb84 https://diejiacademy.com/learn/bb84 QKD 的安全性来自物理定律，不是计算难度 应用与生态 https://diejiacademy.com/learn/quantum-simulation https://diejiacademy.com/learn/quantum-simulation 用可控的量子系统去模拟难算的量子系统 应用与生态 https://diejiacademy.com/learn/quantum-chemistry https://diejiacademy.com/learn/quantum-chemistry 模拟分子基态是量子计算机的原生任务 应用与生态 https://diejiacademy.com/learn/error-mitigation https://diejiacademy.com/learn/error-mitigation 缓解不降低错误率，只是把理想结果估出来 硬件与工程 https://diejiacademy.com/learn/surface-code https://diejiacademy.com/learn/surface-code 只测近邻的校验子，就能纠全局的错 硬件与工程 https://diejiacademy.com/learn/error-correction https://diejiacademy.com/learn/error-correction 不纠错，规模越大错得越快 硬件与工程 https://diejiacademy.com/learn/pulse-control https://diejiacademy.com/learn/pulse-control 真正作用在硬件上的是有形状的脉冲 硬件与工程 https://diejiacademy.com/learn/readout https://diejiacademy.com/learn/readout 读出是独立的错误源，会把对的态标错 硬件与工程 https://diejiacademy.com/learn/transpilation https://diejiacademy.com/learn/transpilation 连通性和门集决定了线路最后长什么样 硬件与工程 https://diejiacademy.com/learn/benchmarking https://diejiacademy.com/learn/benchmarking 一个数字概括不了一台机器 硬件与工程 https://diejiacademy.com/learn/fidelity https://diejiacademy.com/learn/fidelity 保真度要乘起来看，一千个门之后所剩无几 硬件与工程 https://diejiacademy.com/learn/topological-qubits https://diejiacademy.com/learn/topological-qubits 用全局性质存信息，让局部噪声碰不到 硬件与工程 https://diejiacademy.com/learn/photonic https://diejiacademy.com/learn/photonic 光子几乎不相互作用，这既是优点也是难点 硬件与工程 https://diejiacademy.com/learn/neutral-atom https://diejiacademy.com/learn/neutral-atom 原子阵列可重构，门靠里德堡激发 硬件与工程 https://diejiacademy.com/learn/ion-trap https://diejiacademy.com/learn/ion-trap 保真度最高，但门最慢 硬件与工程 https://diejiacademy.com/learn/superconducting https://diejiacademy.com/learn/superconducting 用微波指挥的宏观量子电路 硬件与工程 https://diejiacademy.com/learn/modalities https://diejiacademy.com/learn/modalities 没有全能路线，只有不同的取舍 硬件与工程 https://diejiacademy.com/learn/hhl https://diejiacademy.com/learn/hhl 解在振幅里，读出来可能比算更贵 线路与算法