学：课程体系
这是一条有序的学习路径，不是博客归档。它从线性代数直觉讲起——这是大多数资料都跳过的真正前提知识——最终讲到量子计算机被证明无法做到的事情。前置知识一目了然，你的学习进度会记录在浏览器中。
实心标记表示你已完成的步骤，空心圆环是你当前的位置。箭头表示前置依赖关系。点击任意步骤即可跳转。
Tomasz Kawalec · CC BY-SA 4.0 ↗
Qubits and superposition
From the definite bit to the amplitude-carrying qubit. Why '0 and 1 at the same time' is a shortcut, not the truth.
前置条件: linear algebra intuition
Measurement
One classical outcome per shot; the distribution is the output. Why looking changes things, and why algorithms repeat.
前置条件: qubits superposition
Entanglement
Joint structure no independent description reproduces: a resource, not a faster-than-light telephone.
前置条件: measurement
NIST · Public domain ↗
Gates and circuits
X, Z, H, rotations and CNOT; circuits as time-ordered choreography; why compilation to real hardware changes everything.
前置条件: qubits superposition
A. Tonomura / Belsazar · CC BY-SA 3.0 ↗
Interference: the actual source of advantage
Wrong answers cancel, right answers reinforce. The one-sentence truth of quantum speedup lives here.
前置条件: gates circuits
The major algorithms
Deutsch-Jozsa for intuition, Grover for search, Shor for cryptography: each with its honest reality check.
前置条件: interference
Decoherence and noise
Why qubits are divas, what T1/T2 mean, and why the useful life of quantum information is finite.
前置条件: gates circuits
Error correction and logical qubits
Many noisy physical qubits become one dependable logical qubit, and 'below threshold' becomes the field's honest scoreboard.
前置条件: decoherence noise
What quantum computers provably cannot do
The most common misconception in the field, treated head-on: quantum computers do NOT try all answers in parallel. Interference is the mechanism.
前置条件: interference, major algorithms
偏好全程引导？ The Academy delivers this same spine as three assessed courses (Beginner, Intermediate, Advanced) with knowledge checks and capstones.
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