# M-theory observables for cosmological space-times

@inproceedings{TBanks2001MtheoryOF, title={M-theory observables for cosmological space-times}, author={T.Banks and W.Fischler}, year={2001} }

We discuss the construction of the analog of an S-matrix for space-times that begin with a Big-Bang and asymptote to an FRW universe with nonnegative cosmological constant. When the cosmological constant is positive there are many such S-matrices, related mathematically by gauge transformations and physically by an analog of the principle of black hole complementarity. In the limit of vanishing $\Lambda$ these become (approximate) Poincare transforms of each other. Considerations of the initial…

## 68 Citations

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