Resolution of cosmological singularities in string theory

Finn Larsen, Frank Wilczek
1997 Physical Review D, Particles and fields  
We show that a class of 3+1 dimensional Friedmann-Robertson-Walker cosmologies can be embedded within a variety of solutions of string theory. In some realizations the apparent singularities associated with the big bang or big crunch are resolved at non-singular horizons of higher-dimensional quasi-black hole solutions (with compactified real time); in others plausibly they are resolved at D-brane bound states having no conventional space-time interpretation.
doi:10.1103/physrevd.55.4591 fatcat:wlbvnznqzvfp5dd3iwjaarkz64