arXiv:quant-ph/0308108AbstractReferencesReviewsResources
Comment on ``Measurement of quantum states of neutrons in the Earth's gravitational field"
Johan Hansson, David Olevik, Christian Türk, Hanna Wiklund
Published 2003-08-21Version 1
In the paper by V.V. Nesvizhevsky et al., Phys. Rev. D 67, 102002 (2003), it is argued that the lowest quantum state of neutrons in the Earth's gravitational field has been experimentally identified. While this is most likely correct, it is imperative to investigate all alternative explanations of the result in order to close all loopholes, as it is the first experiment ever claimed to have observed gravitational quantum states. Here we show that geometrical effects in the experimental setup can mimic the results attributed to gravity. Modifications of the experimental setup to close these possible loopholes are suggested.
Comments: 4 pages, to appear in Phys.Rev.D
Journal: Phys.Rev. D68 (2003) 108701
Subjects: 03.65.Ta
Keywords: earths gravitational field, measurement, experimental setup, lowest quantum state, gravitational quantum states
Tags: journal article
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