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Mechanism for 'superluminal' tunnelling

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  • Herbert G. Winful

    (University of Michigan)

Abstract

In their discussion of a mechanism that I proposed1 to explain the apparent superluminal (that is, faster than light) tunnelling of light pulses observed in photonic barrier experiments2,3,4,5, Büttiker and Washburn6 used an old 'reshaping' argument7 that is at variance with my model1 and is not supported by the bulk of the experimental tunnelling evidence. The mechanism I proposed agrees with experiment and resolves a long-standing paradox — namely, the lack of dependence of tunnelling time on barrier length for thick barriers (the Hartman effect)8,9.

Suggested Citation

  • Herbert G. Winful, 2003. "Mechanism for 'superluminal' tunnelling," Nature, Nature, vol. 424(6949), pages 638-638, August.
    • Handle: RePEc:nat:nature:v:424:y:2003:i:6949:d:10.1038_424638a
    DOI: 10.1038/424638a
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