Physics – Quantum Physics
Scientific paper
2006-11-14
EPL, 82 (2008) 30009
Physics
Quantum Physics
9 pages, 3 figures, Some comments and suggestions are appreciated
Scientific paper
10.1209/0295-5075/82/30009
The mechanism of superluminal traversal time through a potential well or potential barrier is investigated from the viewpoint of interference between multiple finite wave packets, due to the multiple reflections inside the well or barrier. In the case of potential-well traveling that is classically allowed, each of the successively transmitted constituents is delayed by a subluminal time. When the thickness of the well is much smaller in comparision with a characteristic length of the incident wave packet, the reshaped wave packet in transmission maintains the profile of the incident wave packet. In the case of potential-barrier tunneling that is classically forbidden, though each of the successively transmitted constituents is delayed by a time that is independent of the barrier thickness, the interference between multiple transmitted constituents explains the barrier-thickness dependence of the traversal time for thin barriers and its barrier-thickness independence for thick barriers. This manifests the nature of Hartman effect.
Chen Xi
Li Chun-Fang
No associations
LandOfFree
Physical mechanism of superluminal traversal time: interference between multiple finite wave packets does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Physical mechanism of superluminal traversal time: interference between multiple finite wave packets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Physical mechanism of superluminal traversal time: interference between multiple finite wave packets will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-488440