Effective energy of gravitational solitons

Details Effective energy of gravitational solitons Effective energy of gravitational solitons

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987phrvd..35.3263f&link_type=abstract

Physical Review D (Particles and Fields), Volume 35, Issue 10, 15 May 1987, pp.3263-3265

Physics

8

Exact Solutions, Nonlinear Or Nonlocal Theories And Models

Scientific paper

The exact solution of the Einstein equations describing a pair of gravitational solitons superimposed on a spatially flat expanding background is considered. Using the high-frequency approximation we show that the soliton-``antisoliton'' pair carries an energy density which might be expressed as a simple function of intrinsic solitary parameters: ɛ=(m2/16πt) ln(λ2+l2)/λ2, where m is the solitary amplitude, λ is the width of each soliton, and l denotes the initial spatial separation of the pair.

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