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haoxins committed Apr 6, 2024
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12 changes: 12 additions & 0 deletions 2023/rest.md
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Expand Up @@ -517,3 +517,15 @@ Model 3: 7604
唯一的一台车去参加广州车展了, 店里面的是模型.
呃, 难道全国就一台?
```

## 加密货币

- Volume

```
2024-04-02
BTC: $102.26B
ETH: $40.94B
SOL: $11.10B
```
6 changes: 3 additions & 3 deletions 2024/programming.md
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Expand Up @@ -21,9 +21,9 @@ go install golang.org/x/tools/cmd/deadcode@latest
- [Loco](https://github.com/loco-rs/loco)
- Loco is "Rust on Rails".
- 基于
[axum](https://github.com/tokio-rs/axum)
[sea-orm](https://github.com/SeaQL/sea-orm).
[axum](https://github.com/tokio-rs/axum),
[sea-orm](https://github.com/SeaQL/sea-orm),
[tracing](https://github.com/tokio-rs/tracing).

---

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23 changes: 20 additions & 3 deletions 2024/quantum-introduction-1.md
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Expand Up @@ -391,7 +391,7 @@ date: 2023-12-11
$$ \langle g \mid f \rangle = \langle f \mid g \rangle^{*} $$.
- 此外,
$$ f(x) $$
与本身的内积,
`本身`的内积,
- $$ \langle f \mid f \rangle = \int_a^b \mid f(x) \mid^2 dx $$,
- 它是一个非负实数, 仅当
$$ f(x) = 0 $$
Expand Down Expand Up @@ -480,7 +480,24 @@ date: 2023-12-11
- __可观测量由厄米算符表示__.

> `由于厄米算符的期望值是实数, 它们很自然出现在量子力学中.`
这个说法好牵强附会~
这个说法, 如何?

> 此处摘引一段
[惰者集](https://book.douban.com/subject/27603987/)
中的文字~

```
也就是说, 数学运算支配了作为量子力学对象的物理现象.
这种数学运算与物理现象的关系,
并非是通过解析叠加的物理意义而将其用数学公式表现出来,
而是将 "波函数的线性组合可以描述状态的叠加" 视为公理,
然后依据数学运算来确定叠加的意义.
正如费曼所言, 除了数学之外, 没有其他方法能说明态叠加原理了.
我们只能认为量子力学基于数学的无穷魔法,
因此我认为物理现象的背后存在着固有的数学现象.
```

> 摘引结束~
- 算符
$$ \hat{Q} $$
Expand All @@ -491,7 +508,7 @@ date: 2023-12-11
\langle f \mid \hat{Q} g \rangle =
\langle \hat{Q}^{\dagger} f \mid g \rangle
$$
- 对所有的
对所有的
$$ f $$
$$ g $$.
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