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  • Suppose you drop a ball down the side of a valley - classical wisdom tells us that when

    假如你把球從谷的一邊丟下來 - 經典的智慧告訴我們

  • the ball rolls up the hill on the other side, it can't go any higher than the height from

    當球滾上另一側,它不能高​​於

  • which you dropped it - that's conservation of energy!

    你把球丟下的高度,這就是能量的儲存

  • Even if there's a nice big long slope to roll down on the far side of the mountain, the

    即使有一個漂亮的大長坡在山的另一側

  • ball just can't get there - unless you give it enough energy to get over the barrier.

    球就是無法到達那裡 除非你給它足夠的能量來克服的障礙

  • But in quantum mechanics, things work a little differently.

    但在量子力學中運作方式會有一點點不同。 你看,在量子世界

  • You see, the quantum world is probabilistic, so if you release a particle in a valley,

    是隨機的, 所以如果你往山谷丟下一個粒子,有機率

  • chances are the next time you see it, it'll still be somewhere in that valley.

    下一次看到它,它仍然會在山谷裡的某處 但是,如果是在漂亮的大斜坡滾下來

  • But if there's a nice big slope to roll down on the far side of the mountainwell, that's

    在山的另一邊......好吧,這是那個粒子真正想去的地方

  • a place the particle would really like to be - and it turns out there's also a small

    結果原來也有一小點的機會,你會那裡發現它!

  • chance that's where you'll find it!

    如果這還不夠瘋狂 你甚至有可能會在山的中間發現這個粒子

  • If this isn't crazy enough, it's even possible you'll find the particle in the middle of

    而在現實生活中意味著電子偶爾也會在

  • the mountainand in real life this means that an electron sometimes hangs around inside

    原子的原子核中間閒晃!

  • the nucleus of an atom!

Suppose you drop a ball down the side of a valley - classical wisdom tells us that when

假如你把球從谷的一邊丟下來 - 經典的智慧告訴我們

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B1 中級 中文 粒子 量子 丟下 山谷 能量 原子核

什麼是量子隧道? (What is Quantum Tunneling?)

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    林宜悉 發佈於 2021 年 01 月 14 日
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