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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/5107

Title: A note on the role of zero-point energy in evolutionary cosmology
Authors: Kumar, N.
Issue Date: 1969
Publisher: Institute of Physics
Citation: Journal of Physics A, 1969, Vol.2, p210
Abstract: Following a suggestion originally due to IL'lcCrea, a physical vaccum is regarded as the ground state of a certain quantized field obeying Bose statistics. Under certain assumptions regarding the physical nature of the zero-point energy (assumed to be essentially positive) associated with the Bose field, the latter is found to result in an effectively negative kinematic pressure p having the functional dependence of the form p cc G-4, where G is the curvature of space. This leads naturally to an oscillating isotropic model of the universe without singularity, of the type treated in detail by Pachner. In effect, the purely mathematical artifice of assuming negative pressure is given a physical basis in terms of the zero-point energy considerations.
Description: Restricted Access
URI: http://hdl.handle.net/2289/5107
ISSN: 1751-8113
1751-8121 (Online)
Alternative Location: http://dx.doi.org/10.1088/0305-4470/2/2/009
http://adsabs.harvard.edu/abs/1969JPhA....2..210K
Copyright: 1969 Institute of Physics
Appears in Collections:Research Papers (TP)

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