如果你知道在你的实验装置中的原子，它们就必然具有某些动量的不确定性使得这些原子的温度高于绝对零度，不然的话，只有你的实验装置的尺度达到了整个宇宙。

If you know your atoms are inside your experiment, there must be some uncertainty in their momentum keeping them above absolute zero - unless your experiment is the size of the whole universe.

youdao

为了实现真正的基态，物理学家不得不将光束冷却到接近绝对零度，他们还要通过使光束保持静止来增大其频率，让量子尺度变得尽可能大。

To reach the ground state, physicists had to cool their beams to nearly absolute zero.They also had to make the quanta as large as possible by making a beam stiffer to increase its frequency.

youdao

为了实现真正的基态，物理学家不得不将光束冷却到接近绝对零度，他们还要通过使光束保持静止来增大其频率，让量子尺度变得尽可能大。

To reach the ground state, physicists had to cool their beams to nearly absolute zero. They also had to make the quanta as large as possible by making a beam stiffer to increase its frequency.

youdao