article Open AccessTop 1% cited

Sudden future singularities

Classical and Quantum Gravity · 2004 · Vol. 21(11) · pp. L79–L82

John D Barrow✉(University of Cambridge)

Abstract

We show that a singularity can occur at a finite future time in an expanding Friedmann universe even when the density is positive and the density plus the sum of the principal pressures is positive. Explicit examples are constructed and a simple condition is given which can be used to eliminate behaviour of this sort if it is judged to be unphysical.

Cosmology and Gravitation Theories Statistical Mechanics and Entropy Black Holes and Theoretical PhysicsGravitational singularitySingularitysortSimple (philosophy)UniversePrincipal (computer security)Friedmann equationsCosmology

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439

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References

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