Quantum tunneling time

  title={Quantum tunneling time},
  author={Paul C. W. Davies},
  journal={American Journal of Physics},
  • P. Davies
  • Published 2005
  • Physics
  • American Journal of Physics
A simple model of a quantum clock is applied to the old and controversial problem of how long a particle takes to tunnel through a quantum barrier. The model has the advantage of yielding sensible results for energy eigenstates and does not require the use of time-dependent wave packets. Although the treatment does not forbid superluminal tunneling velocities, there is no implication of faster-than-light signaling because only the transit duration is measurable, not the absolute time of transit… Expand
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