New singularities in unexpected places
Change log
Authors
Barrow, JD
Graham, AAH
Abstract
jats:p Spacetime singularities have been discovered which are physically much weaker than those predicted by the classical singularity theorems. Geodesics evolve through them and they only display infinities in the derivatives of their curvature invariants. So far, these singularities have appeared to require rather exotic and unphysical matter for their occurrence. Here, we show that a large class of singularities of this form can be found in a simple Friedmann cosmology containing only a scalar-field with a power-law self-interaction potential. Their existence challenges several preconceived ideas about the nature of spacetime singularities and has an impact upon the end of inflation in the early universe. </jats:p>
Description
Keywords
Cosmology, singularities, inflation
Journal Title
International Journal of Modern Physics D
Conference Name
Journal ISSN
0218-2718
1793-6594
1793-6594
Volume Title
24
Publisher
World Scientific Pub Co Pte Lt
Publisher DOI
Sponsorship
Science and Technology Facilities Council (ST/L000636/1)