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The European Physical Journal D

, Volume 41, Issue 1, pp 49–54 | Cite as

Interference and dispersion effects on tunneling time

  • J. C. MartinezEmail author
  • E. Polatdemir
  • M. Taufik
Atomic Physics

Abstract.

We study the interplay between pulse width, interference and tunneling for a wave packet incident upon a barrier and, within the context of tunneling time, we offer a complementary insight into the origin of the Hartman effect. We find that interference together with momentum spread lower (increase) the transmission (reflection) tunneling time thereby `breaking the symmetry between transmission and reflection times'. But, within the limits of our method, we are unable to confirm that negative tunneling time can be obtained.

PACS.

03.65.Xp Tunneling, traversal time, quantum Zeno dynamics 42.25.Bs Wave propagation, transmission and absorption 73.40.Gk Tunneling 

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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Authors and Affiliations

  1. 1.Natural Science Academic Group, National Institute of Education, Nanyang Technological UniversitySingaporeP.R. China
  2. 2.Physics DepartmentMataram UniversityLombokIndonesia

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