dorsal/arxiv
View SchemaQuantum tunneling time
| Authors | P. C. W. Davies |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0403010 |
| URL | https://arxiv.org/abs/quant-ph/0403010 |
| DOI | 10.1119/1.1810153 |
Abstract
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 I employ has the advantage of yielding sensible results for energy eigenstates, and does not require the use of time-dependant 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. A comparison is given with the weak-measurement post-selection calculations of Steinberg.
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"abstract": "A simple model of a quantum clock is applied to the old and controversial\nproblem of how long a particle takes to tunnel through a quantum barrier. The\nmodel I employ has the advantage of yielding sensible results for energy\neigenstates, and does not require the use of time-dependant wave packets.\nAlthough the treatment does not forbid superluminal tunneling velocities, there\nis no implication of faster-than-light signaling because only the transit\nduration is measurable, not the absolute time of transit. A comparison is given\nwith the weak-measurement post-selection calculations of Steinberg.",
"arxiv_id": "quant-ph/0403010",
"authors": [
"P. C. W. Davies"
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"doi": "10.1119/1.1810153",
"title": "Quantum tunneling time",
"url": "https://arxiv.org/abs/quant-ph/0403010"
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