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Cosmology

Unique, or not unique?

Nature volume 442, pages 988–989 (2006)Cite this article

That is the question. The search for a single theory of everything is as old as science itself, and is now the beat of quantum cosmologists. But some basic tenets that inform the quest are being challenged.

Whether 'tis nobler in the mind to suffer The slings and arrows of outrageous fortune, Or to take arms against a sea of troubles, And, by opposing, end them?

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Figure 1: Take it from the top.

References

  1. Kachru, S., Kallosh, R., Linde, A. & Trivedi, S. P. Phys. Rev. D 68, 046005 (2003).

    ADS  MathSciNet  Article  Google Scholar 

  2. Susskind, L. preprint available at www.arxiv.org/hep-th/0302219 (2003).

  3. Hawking, S. W. & Hertog, T. Phys. Rev. D 73, 123527 (2006).

    ADS  MathSciNet  Article  Google Scholar 

  4. Hartle, J. B. & Hawking, S. W. Phys. Rev. D 28, 2960–2975 (1983).

    ADS  MathSciNet  Article  Google Scholar 

  5. Vilenkin, A. Phys. Rev. D 30, 509–511 (1984).

    ADS  MathSciNet  Article  Google Scholar 

  6. Schiller, F. reprinted in Hist. Theor. 11, 321–334 (1972).

    Article  Google Scholar 

  7. Griffiths, R. J. Stat. Phys. 36, 219–272 (1984).

    ADS  Article  Google Scholar 

  8. Omnès, R. J. Stat. Phys. 53, 893–932 (1988).

    ADS  Article  Google Scholar 

  9. Gell-Mann, M. & Hartle, J. B. Phys. Rev. D 47, 3345–3382 (1993).

    ADS  MathSciNet  CAS  Article  Google Scholar 

  10. Joos, E. et al. Decoherence and the Appearance of a Classical World in Quantum Theory (Springer, Berlin, 2003).

    Book  Google Scholar 

Download references

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  1. Department of Physics, Penn State University, 104 Davey Lab, University Park, 16802-6300, Pennsylvania, USA

    Martin Bojowald

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  1. Martin Bojowald
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Bojowald, M. Unique, or not unique?. Nature 442, 988–989 (2006). https://doi.org/10.1038/442988a

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