On Zero-Point Fluctuations, the Cosmological Constant, and the Graviton Mass

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/3424

Title:	On Zero-Point Fluctuations, the Cosmological Constant, and the Graviton Mass
Authors:	Sivaram, C
Keywords:	Cosmology: Theory Relativity
Issue Date:	Aug-1999
Publisher:	The American Astronomical Society
Citation:	The Astrophysical Journal, Vol. 520, No. 2, pp. 454 - 455
Abstract:	Recently attempts have been made to link vacuum zero-point fields (ZPF), with a nonzero cosmological constant (Lambda), which is now treated as a cosmological free variable to be determined by observations. In another recent paper, Lambda is related to a graviton mass. This is shown to be incorrect. Flat space propagators for both massless and massive spin-2 particles can be written (independently of gravity) in the context of flat space wave equations. However, they do not correspond to full general relativity with a graviton mass.
URI:	http://hdl.handle.net/2248/3424
Appears in Collections:	IIAP Publications

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