DSpace
 

RRI Digital Repository >
07. Theoretical Physics >
Research Papers (TP) >

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/4061

Title: Atom interferometry and the gravitational redshift
Authors: Sinha, Supurna
Samuel, J.
Issue Date: 21-Jul-2011
Publisher: IOP Publishing Ltd
Citation: Classical and Quantum Gravity, 2011, Vol.28, p145018
Abstract: From the principle of equivalence, Einstein predicted that clocks slow down in a gravitational field. Since the general theory of relativity is based on the principle of equivalence, it is essential to test this prediction accurately. M¨uller, Peters and Chu claim that a reinterpretation of decade old experiments with atom interferometers leads to a sensitive test of this gravitational redshift effect at the Compton frequency. Wolf et al dispute this claim and adduce arguments against it. In this paper, we distill these arguments to a single fundamental objection: an atom is not a clock ticking at the Compton frequency. We conclude that atom interferometry experiments conducted to date do not yield such sensitive tests of the gravitational redshift. Finally, we suggest a new interferometric experiment to measure the gravitational redshift, which realizes a quantum version of the classical clock ‘paradox’. PACS numbers: 04.80.−y, 03.75.Dg
Description: Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)
URI: http://hdl.handle.net/2289/4061
ISSN: 0264-9381
1361-6382 (Online)
Alternative Location: http://arxiv.org/abs/1102.2587
http://dx.doi.org/10.1088/0264-9381/28/14/145018
http://adsabs.harvard.edu/abs/2011CQGra..28n5018S
Copyright: 2011 IOP Publishing Ltd
Appears in Collections:Research Papers (TP)

Files in This Item:

File Description SizeFormat
2011_Classical and Quantum Gravity_V28_p145018.pdfRestricted access134.66 kBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

    RRI Library DSpace