Title:	Measuring the general relativistic curvature of wavefronts
Authors:	Samuel, J.
Issue Date:	Jun-2004
Publisher:	IOP Publishing Ltd.
Citation:	Classical and Quantum Gravity, 2004, Vol.21, pL83-L88
Abstract:	Einstein's general theory of relativity predicts that an initially plane wavefront will curve because of gravity. This effect can now be measured using very long baseline interferometry (VLBI). A wavefront from a distant point source will curve as it passes the gravitational field of the Sun. We describe an idealized experiment to directly measure this curvature, using four VLBI stations on the Earth, separated by intercontinental distances. Expressed as a time delay, the size of the effect is a few hundred picoseconds and may be measurable with present technology.
Description:	Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)
URI:	http://hdl.handle.net/2289/2644
ISSN:	0264-9381
Alternative Location:	http://arxiv.org/abs/gr-qc/0211050 http://dx.doi.org/10.1088/0264-9381/21/11/L04
Copyright:	2004 IOP Publishing Ltd.
Appears in Collections:	Research Papers (TP)

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