论文标题
相对论量子隧穿
Subluminality of relativistic quantum tunneling
论文作者
论文摘要
我们证明，在存在外部（非动力）电磁场的情况下，经典的狄拉克方程是相对性的因果理论。作为推论，我们表明，不可能使用量子隧穿来比光快地传输颗粒或信息。当电子隧道穿过屏障时，它势必保留在其未来的光锥中。总之，相对论量子隧道（如果使用dirac方程进行建模）是一个完全跨膜的过程，并且不是瞬时的。
We prove that the classical Dirac equation in the presence of an external (nondynamical) electromagnetic field is a relativistically causal theory. As a corollary, we show that it is impossible to use quantum tunneling to transmit particles or information faster than light. When an electron tunnels through a barrier, it is bound to remain within its future light cone. In conclusion, the relativistic quantum tunneling (if modeled using the Dirac equation) is an entirely subluminal process, and it is not instantaneous.
