Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

Quantum gravity

Physics from geometry

Two recent developments suggest how familiar properties of gravity and matter may emerge from the quantum geometry that underlies loop quantum gravity.

This is a preview of subscription content, access via your institution

Access options

Buy article

Get time limited or full article access on ReadCube.

$32.00

All prices are NET prices.

Figure 1: Is space loopy? In loop quantum gravity, space is fundamentally discrete and continuum is only an approximation.

TERESA IARIA 2004; PIO MONTI GALLERY, ROME

References

  1. Rovelli, C. Phys. Rev. Lett. (in the press); preprint at <http://arxiv.org/abs/gr-qc/0508124> (2006).

  2. Bianchi, E., Modesto, L., Rovelli, C. & Speziale, S. Class. Quantum Grav. (in the press); preprint at <http://arxiv.org/abs/gr-qc/0604044> (2006).

  3. Livine, E. & Speziale, S. Preprint at <http://arxiv.org/abs/gr-qc/0608131> (2006).

  4. Bilson-Thompson, S. O. <Preprint at http://arxiv.org/abs/hep-th/0503213> (2005).

  5. Bilson-Thompson, S. O., Markopoulou, F. & Smolin, L. Preprint at <http://arxiv.org/abs/hep-th/0603022> (2006).

  6. Gleick, J. Genius: The Life and Science of Richard Feynman 382 (Patheon, New York, 1992).

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Ashtekar, A. Physics from geometry. Nature Phys 2, 725–726 (2006). https://doi.org/10.1038/nphys447

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1038/nphys447

This article is cited by

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing