Submitted:
25 May 2021
Posted:
26 May 2021
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Abstract
We have introduced a sign operator of energy, analogous to the operator helicity, but in the direction of what we call energy vector. However, this energy vector needs a time vector. To give physical senses to the components of such a time vector, we try to explain the time dilation in special relativity and try to relate the components of the time vector to the tunneling times when an electron crosses a potential barrier.
Keywords:
Tunnelling time
; helicity
; time dilation
; Dirac equation
; superluminal velocity
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