Comment on ``Quantum tunneling time''

Details Comment on ``Quantum tunneling time'' Comment on ``Quantum tunneling time''

Feb 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005phrva..71b6101h&link_type=abstract

Physical Review A, vol. 71, Issue 2, id. 026101

Physics

Tunneling, Traversal Time, Quantum Zeno Dynamics, Wave Propagation, Transmission And Absorption, Tunneling

Scientific paper

In this Comment on the paper by Wanget al., Phys. Rev. A692004052108], it is pointed out that (i) a group-theoretical argument advanced in the first part of their derivation is both flawed and not needed in what follows, (ii) they then assert a formula that leads to a physically incorrect phase (as distinguished from group) delay time in the motion of a free particle, and (iii) their subsequent derivation contains a mathematical error, such that the outcome is a new formula for the tunneling time that avoids the second problem, but such that the result is unfounded and is therefore of unknown physical content.

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