遗憾的是,一秒钟的标准定义依赖于原子在绝对零度的条件,而实际的时钟需要在室温下运行,室温条件下电子壳层膨胀了。
Unfortunately, the standard definition of a second relies on what the atom does at a temperature of absolute zero. Real clocks need to run at room temperature, where the shell of electrons puffs up.
但是将石墨单原子层冷却到接近绝对零度时,不可思议的事情发生了:电子的速度得到显著增加。
But cool this graphene down to near absolute zero and something extraordinary happens: the electrons speed up dramatically.
在绝对零度时,纯半导体所有电子都紧紧结合在一起,因而显示出绝缘体的性质。
At absolute zero, a pure semiconductor has all of its electrons tightly bound and ACTS as an insulator.
在绝对零度时,绝对半导体所有的电子都紧紧结合在一起,因而显示出绝缘体的性质。
At absolute zero, a pure semiconductor has all of its electrons tightly bound and ACTS as an insulator.
在绝对零度时,绝对半导体所有的电子都紧紧结合在一起,因而显示出绝缘体的性质。
At absolute zero, a pure semiconductor has all of its electrons tightly bound and ACTS as an insulator.
应用推荐