Abstract
A topological field theory with Bogomol'nyi solitons is examined. The Bogomol'nyi solitons have much in common with the instanton in Yang-Mills theory; consequently we called them ‘topological instantons.’ When periodic boundary conditions are imposed, the field theory comments indirectly on the speed of light within the theory. In this particular model the speed of light is not a universal constant. This may or may not be relevant to the current debate in astronomy and cosmology over the large values of the Hubble constant obtained by the latest generation of ground- and space-based telescopes. An experiment is proposed to detect spatial variation in the speed of light.
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Temple-Raston, M. Redshift in Hubble's constant. Int J Theor Phys 36, 249–258 (1997). https://doi.org/10.1007/BF02435784
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DOI: https://doi.org/10.1007/BF02435784