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arXiv · astro-ph/0312014

Planck-scale structure of spacetime and some implications for astrophysics and cosmology

Giovanni Amelino-Camelia
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Abstract

I briefly review some scenarios for the role of the Planck length in quantum gravity. In particular, I examine the differences between the schemes in which quantum gravity is expected to introduce a maximum acceleration and the schemes in which the Planck length sets the minimum value of wavelengths (maximum value of momentum). I also comment on some pictures for the structure of spacetime at the Planck scale, such as spacetime discretization and spacetime noncommutativity. I stress that some of these proposals can have significant implications in astrophysics and cosmology.

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Giovanni Amelino-Camelia. 2003-12-08. Planck-scale structure of spacetime and some implications for astrophysics and cosmology. https://doi.org/10.1142/9789812702999_0001

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